That's what i'm doing. I've mastered to level 4 the white swan dress...then stupidly hit "store" instead of "rotate" on one of the hangers they were on
I have level 2 on the other items in this catalogue. Once i've fully mastered the lady in red catalogue then i'll go back and master the rest of the swan outfit and in between will work at getting level 2 on all the valentine stuff. I figure we may have a little more time on the valentine stuff, although there's no way of knowing. They may just remove everything post valentine's day.