I usually don't pick on grammar but the usage of an apostrophe to pluralize words is a pet peeve.
You wouldn't put an apostrophe on "Sakuya's" unless you are saying that he draws lots of "over, and over, and over again." and they belong to sexy Sakuya.
alicemaiwaifu said: The artist who drew this has a distinct style in drawing faces with sharp features, not to mention his preferation of drawing sexy Sakuya's over, and over, and over again.
He should be easily sourcable.
That describes hikawa_shou just as well, but I don't think you'd confuse them.