Nice stuff! Must have been a ton of work producing so many variations. : O
I think you could really improve your designs by breaking the silhouettes more, from a long glance a lot of these look very similar, the costumes hug the shape of the pose very closely. Trying more big external shapes on the edges of the design would help.
Also, just a thought, have you considered varying the body type of the base? Trying a very tall or very short goddess for instance?
Looking forward to seeing more, keep it up.