WordNet sense 1 (sensational in appearance or thrilling in effect):

striking

WordNet sense 2 (making a strong or vivid impression):

impressive

WordNet sense 3 (suitable to or characteristic of drama):

dramatic

WordNet sense 4 (having a quality that thrusts itself into attention):

outstanding, prominent, salient

WordNet sense 5 (obvious to the eye or mind):

conspicuous