Tattoo must be based on traditional American style of tattooing featuring bold black outlines and a limited color palette. This limited color palette might include yellow, red, green, black and purple/brown. Slight shading in grey and black is acceptable.

Tattoos defined as neo-traditional draw on the main elements of the traditional style, although the design, theme and composition are more elaborate and contain more details. The outline remains clear but can vary in thickness. The colour palette is expanded from the traditional tattoo with tonal transitions and colour blends. Tattoo may contain more realistic elements.

This is a category for newschool, cartoon and comic tattoos. This style originates directly from oldschool and neotraditional but is much more experimental and open to combining different techniques and blending styles. It is characterized using thick contours, vivid, intense, and bright colours and often caricatured representations of an object or subject. Tattoos refer to the old school, but thematically they are mainly influenced by video games, comics, TV shows, cartoons, anime, graffiti, or elements of pop culture.

A tattoo directly referencing tribal and primitive designs or those associated with a particular cultural group will also be judged, as well as geometric tattoos with simple and coherent forms. An ethnic tattoo references the culture and traditions of a specific region or country. Such a tattoo often uses motifs and symbols characteristic of that culture, such as geometric patterns, religious symbols, animals, or plants. An ethnic tattoo can be done in various styles, from traditional to modern, but always refers to specific patterns and symbols that are characteristic of that culture.

When creating such a tattoo, it is important to use appropriate colors and techniques that reflect the unique aesthetics of that region or country. An ethnic tattoo can be done in different sizes and locations on the body. These designs usually attract attention with their non-traditional aesthetics and cultural value. Such a tattoo can also be a sign of respect for a particular culture and its traditions. The main criteria for evaluation will be the composition and technique of the tattoo.

A tattoo reflecting reality or reproduced from a photograph. More elaborate and abstract or surreal forms combined with realism are allowed. The use of one additional colour is permitted.

A tattoo reflecting reality or reproduced from a photograph. More elaborate and abstract or surreal forms combined with realism are allowed. A full colour palette is allowed.

In this category, tattoos and compositions with abstract forms and/or referring to printmaking and painting techniques will be judged. Such a tattoo often makes use of symbols, lines and shapes characteristic of graphic techniques such as relief printing, engraving or the creation of shapes by means of single dots that combine into a whole. Thin lines and precise contours are also often used in such tattooing, which refer to traditional drawing techniques. The design may also include decorative elements such as ornaments, letters or floral elements. The tattoo may also include elements that refer to painting techniques such as oil or watercolour. In this case, such a design may use different shades of colour to create the effect of an abstract painting on the skin.

Tattoos made in any style by 1 artist may be submitted to this category. The work in its entirety must be done during the event, tattoos started earlier or refreshed are not allowed to be submitted.

Tattoos made in any style by 2 or more artists can be submitted to this category. The work in its entirety must be done during the event, submissions of work started earlier or refreshed are not permitted.