sketch
A hasty or undetailed drawing or painting often made as a preliminary study. Traits include rough lines, monochrome or basic coloring, and left over structural shapes.
Not all pictures with these traits are considered sketches, such as Danbooru post #2721361 and Danbooru post #2722170. Posts with proper use of the sketch tag are Danbooru post #2720851 and Danbooru post #2722791.
Abbreviated on Pixiv as "rkgk", which comes from the Japanese word for sketch (落書き, rakugaki). Not all pictured tagged as "sketch" by the artist should be tagged as sketch on Danbooru. The picture must look like a sketch for it to apply. Translated tags have been removed from this wiki, because artists tend to use this tag in a very misleading way.
Sketches are not sufficient reasons for flagging. See howto:flag.
Not to be confused with sketching, which is used for when a character within the image is sketching an image themselves.
