The adjective aesthetic comes in handy when the subject at hand is beauty or the arts. A velvet painting of dogs playing poker might have minimal aesthetic appeal.
Aesthetic, from a Greek word meaning "perception," comes to us from German philosophers who used it for a theory of the beautiful. From this technical sense, it soon came to refer to good taste and to artistry in general; if something has "aesthetic value," it has value as a work of art (even if nobody will pay much for it). It does not, however, refer to the objects themselves; do not talk about an "aesthetic painting."
adj concerning or characterized by an appreciation of beauty or good taste
satisfying aesthetic standards and sensibilities
serving an aesthetic purpose in beautifying the body
having qualities unique to the art of painting
taking delight in beauty