i dunno why but there's something really familiar about these models, it's like when an artist's style and preferences kinda dictates the shape of the character's facial features as if the artist made his very own racial look
these models of yours look familiar in that sense, like i've seen them before somewhere around
These really do look great, and I think you should keep doing things like this. If you were feeling ambitious, (or extremely bored) you could even make a comic using your 3D characters. I would love to see what Marceline would do in Ponyville, or what ponies would do in the land of Ooo. I mean, just dialogue and the characters would be enough if you don't want to do backgrounds.