interesting work - though i'd say that i have a problem with the legs on both of the figures. in the one lower down, the "relationality" between the two seems rather flat - a continuation of the same plateau (i.e plane) through the waist And the legs that seems a bit disconcerting.
As well as the head on the lower one, seems to be relatively out of proportion.
The one higher up seems to just have problems with the mode of shading on her legs -
other than that- my usual ranting on the anime style of drawing sketches etc and the over defined jaw line that was made.
But i must say, this is very impressive in terms of a perspective study.
Great effort. Would be lovely to see some more pieces on perspective,
for their educational value as well as their execution.