Crazy Opus Mosaic with Arianna Gallo

Learn how to create intentional mosaics with The Crazy Opus effect

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Course intro and interview with Arianna Gallo and Tami Macala

Arianna shares her many tips and tricks on creating your very own Crazy Opus Mosaic!


What exactly is Opus? In Latin, it means “the work.” In mosaic art, Opus refers to how tesserae (tiles) are arranged to create specific patterns, rhythm, and movement. While it may sound similar to andamento, the two are actually quite different, and understanding that difference can open up a whole new world of creative expression.

We are absolutely thrilled to introduce Crazy Opus Mosaic, a bold and expressive technique brought to life by professionally trained mosaic artist Arianna Gallo of KoKo Mosaico. While you won’t find “Crazy Opus” listed in the traditional catalog of Opera styles, trust us—this is one technique you definitely want to learn.

In this online course, Arianna shares her two-part innovative approach to this mosaic composition. You’ll learn how to use Italian and Mexican smalti, cut into small square tesserae, and arrange them in a seemingly random yet intentional design that creates texture and flow. The other half of this online course lies in color gradation and seamless transitions, and Arianna guides you every step of the way.

In this course, you will learn:

  • The difference between Andamento and Opus
  • The rules of Crazy Opus
  • Arianna’s favorite tools and materials
  • Choosing your Mexican and Italian Smalti palette
  • Cutting the specific shapes of the Smalti (hammer and hardie NOT required)
  • Tinting, mixing, and spreading the thin set
  • How to use stained glass and lead strips for an optional focal point
  • How to place the Smalti intentionally
  • Arianna’s method for transitioning and blending colors to create a smooth gradation

Whether creating a background or a stand-alone abstract piece, this method brings new energy that can be fun and freeing. This technique allows you to create a non-andamento look to your mosaic work while staying grounded in craftsmanship and your artistic intuition.

If you're curious about the broader world of Opus, this course is a fantastic gateway. There’s a rich history and a wide variety of styles to explore, and many artists have shared valuable insights into these designs and patterns. But with Crazy Opus, Arianna offers something unique—a fusion of structure and spontaneity that will broaden your mosaic horizons.

Arianna has included a list of her favorite tools, materials, and resources inside the course.


Your Instructor


Arianna Gallo
Arianna Gallo

Arianna Gallo graduated with a first-class honour’s degree from Gino Severini Mosaic Institute of Art and from Scuola per il Restauro del Mosaico, Soprintendenza di Ravenna.

During and after her training, Arianna worked as a restorer (1999-2004), she has participated in the conservation of the prestigious Domus dei Tappeti di Pietra and the Mausoleum of Galla Placidia in Ravenna.

Between 2000 and 2005 she taught mosaic techniques at the CISIM, International Center for Mosaic Teaching Studies, a specialist international mosaic school based in Lido Adriano, Ravenna.

Arianna has participated in the making of the replica of the monumental Alexander Mosaic for the House of the Faun, Pompei (2002-2004), the most famous and largest opus vermiculatum mosaic in the world.

Arianna opened Koko Mosaico in 2005, an independent mosaic studio in the heart of the old city of Ravenna, together with her husband, the visual artist Luca Barberini.

The works created by Koko Mosaico range from copies of ancient mosaics to commissions of original modern and contemporary mosaics, suitable for interiors as well as external architectural spaces.

She also collaborates with international contemporary artists, interpreting their work in the mosaic medium. Among the most important projects of the studio, the translation of Domingo Zapata's works for the Venice Biennale, 2013.

The activity of Koko Mosaico is supervised by Arianna, creative director of the laboratory, a multifaceted figure who deals not only with the conception, design and production.

Arianna and her team continue to explore the language of mosaic, while never losing sight of its ancient traditions, also with the teaching of mosaic techniques.

Students from all over the world come to Koko Mosaico willing to learn this ancient art, also mosaic artists eager to broaden their knowledge.

The Direct Ravenna Method course is the master, through the latter the phases of the direct technique on temporary support (lime /clay) or the secrets of the direct technique on cement mortar are explored.

The Koko Mosaico team is capable of mastering the most disparate techniques of execution.

The workshop is an open studio, full of light and international in character: a space where ideas become reality.

Arianna is also responsible for overseeing Italian and international commissions and all artistic collaborations at the studio.

She has accrued significant experience in organizing workshops both abroad and in her studio in Ravenna, where she hosts Erasmus exchange students including those with the Academy of Fine Arts and the Mosaic Conservation programme held at the Ravenna branch of Bologna University.

She has organized a range of mosaic projects and has collaborated with the public sector, with museums and universities both in Italy and with several independent mosaic studios in Europe, the US, Canada, and Australia.

As an artist, she regularly exhibits and has recently participated in exhibition Piccoli Mosaici at NeoHouse, Tokyo; Kyoto Mosaic Exhibition, Japan, and shows in Florence and Rome, as well as Ravenna.

Arianna has won many prizes and recognition for her artwork and its role in social engagement. In 2019, her interpretation of the artwork Scar by Chinese artist Peng Shuai won the GAeM award.

Icon of her style, Lens was acquired by MAR, Museum of Art of Ravenna in 2009.



Frequently Asked Questions


When does the course start and finish?
The course starts now and never ends! It is a completely self-paced online course - you decide when you start and when you finish.
How long do I have access to the course?
How does lifetime access sound? After enrolling, you have unlimited access to this course for as long as you like - across any and all devices you own.
What if I am unhappy with the course?
We would never want you to be unhappy! If you are unsatisfied with your purchase, contact us in the first 14 days and we will give you a full refund.

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