Pixel art is a form of digital art created using raster graphic software. It involves the precise manual arrangement of pixels without filters that could calculate new pixel values. Drawings typically start with a line art outline before adding color and details pixel by pixel.
Concept art is a visual representation of a design, idea, or mood used before a product is finalized. A concept artist generates visual designs for items or characters that do not yet exist using software or traditional techniques.
Texture refers to the perceived surface quality of a work of art, including both actual physical textures like fur or glass, and visual textures that create the illusion of physical texture. Every material has its own visual texture that must be considered in compositions.