honestly not much to say here, proportions, anatomy and flow are essentially perfect. i guess the thing you can work towards now is getting a cleaner sketch and lines without giving up all that. good job :)
These are gorgeous! But one thing I notice is that none of these appear to use a line of action.
It seems like you are fairly confident with proportion and rendering poses as you see it. I think a fun challenge for you for a few weeks would be to draw a strong line of action, and then pick a part of the pose to believably exaggerate to get a more expressive and energetic piece of art. The real trick to doing this is to not make it feel so overdone that it's obvious or cartoony. :)