WordNet sense 1 ((philosophy) a philosophical theory as to what is beautiful):

esthetic

WordNet sense 2 (aesthetically pleasing):

pleasing

WordNet sense 3 (having or showing or conforming to good taste):

tasteful

WordNet sense 4 (satisfying aesthetic standards and sensibilities):

artistic

WordNet sense 5 (concerning or characterized by an appreciation of beauty or good taste):

aesthetical, esthetical