my harem collection though i don't think its anything special
1) lucy heartfilia from fairy tail
2) dark magician girl from yugioh
3) nami from one piece
4) nico robin from one piece
5) erza scarlet from fairy tail
6) cecila cumani aintree from valkyrie romance
7) rias gremory from highschool DXD
8) akeno from highschool DXD
9) saeko busujima from highschool of the dead
10) shizuka marikawa from highschool of the dead
11,12,13) satan, lucifer (icy blue version) and asmodeus from orchid seeds The 7 deadly sins figurine collection (there an awesome set of girls and nobody said it had to be anime related) these are 3 hot crazy powerful demon girls btw
14) samus arus metroid prime
15) tifa lockheart (maybe)
thats my list