It's definitely easier to look at than before, and I get the feeling that your confidence in the anatomy of your characters has improved somewhat too.
There's this weird thing going on now though, where the contour of the character is all hard edges but all the coloring on the inside is soft, which is a little clashing IMO. The way you do the high-contrast airbrush shading is cool since it makes this really unique metallic look, but it needs to be kind of balanced.
- try to think more "planar-ly". Since abrupt plane changes make hard edges, thinking of how to simplify things into planes could help determine where to put those edges. And at least in my experience, it's much easier to make a hard edge and soften it later as necessary than it is to start with soft edges and try to change them later.
- consider depth of field when deciding about edge hardness, especially since you do a lot of foreshortening (the super dynamic foreshortening is definitely one of your strong suits)
- consider adding more detail to things that are closer relative to things that are further away.
I feel like refinement in those areas could make the art have a fantastic sense of depth and space, which it already is approaching.
As for whether now is a good time to reboot, I can't really say. Probably only you can know that ^^