Realism is a type of art style just based off of someone or something realistic. Like this image of a bird, its accurate and does look like a bird.
Ways somebody could improve or try and start learning how to draw realistically is looking at a lot of references of real people, animals, or things, whichever youre trying to do, and study how colors work on real people or real things. Porportions are also good if youre trying to draw something with a body like a human or an animal.
Expressionism art is a type of art style that is used as a way to express if youre feeling happy, upset, frustrated, etc.
As a reaction against Impressionism and academic art, Expressionism refers to art in which the representation of reality is not objective but distorted in order to express the inner feelings of the artist.
Cartoon art is a simple drawing showing the features of its subjects in a humorously exaggerated way, especially a satirical one in a newspaper or magazine: or it is just a simple styled drawing of somebody or something. Like in some tv shows, or cartoons, the characters are drawn in a simple way. Also sometimes with a cartoony type of artstyle, if someone were to draw it digitally, then sometimes they dont use as much shading as they would with other artstyles and just stick to plain base colors.
Pop art was based on modern popular culture and the mass media, especially as a critical or ironic comment on traditional fine art values.Pop Art usually contains bold imagery with intense colors and a bit of irony in the artwork.
Pop art was defined as a diverse response to the postwar era’s commodity-driven values, often using commonplace objects (such as comic strips, soup cans, road signs, and hamburgers) as subject matter or as part of the work.