Watercolor (American English) or watercolour (British English), also aquarelle (French, diminutive of Latin aqua "water"), is a painting method in which the paints are made of pigments suspended in a water-based solution. Watercolor refers to both the medium and the resulting artwork.
Alcohol ink is an acid-free, vividly-colored, alcohol-based dye that is liquid, translucent and fast drying. It is best used on non-porous surfaces (e.g. ceramics). Mixing colors can create a vibrant, marbled, and fluid effect.
Acrylic paint is a fast-drying paint made of pigment suspended in acrylic polymer emulsion. Acrylic paints are water-soluble, but become water-resistant when dry. Depending on how much the paint is diluted with water, or modified with acrylic gels, mediums, or pastes, the finished acrylic painting can resemble a watercolor, a gouache or an oil painting, or have its own unique characteristics not attainable with other media.
Collage (from the French: coller, "to glue") is a technique of an art production, primarily used in the visual arts, where the artwork is made from an assemblage of different forms, thus creating a new whole.