First just want to say that all the art is great. I was more so interested in the femboy variants, but even the other ones were nice and varied and didn't just settle for reusing scenes from the original art with a new sheen.
However, I am somewhat disappointed that it only amounted to one new image per monster. When I had envisioned the DLC to come, I had the presumption that it would be essentially be a full replacement of the images with the femboy/futa variant, I.E. the pure, nude, lewd, and wild would all be femboy images, if that makes sense.
However, I do not want that criticism/delusion to take away from the work you put into it, because I imagine it was a lot of work to do just those images, since I assume you either make them yourself or you edit whatever comes out of a generator for maximum visual pleasantness.