your drawings have a nice flow overall and the first one shows some good colour sense. I'm not sure about your anatomy (I KNOW it's exaggerated, I KNOW your probably going for something other than human), the structure of some of it ( hips especially) take me out of it, I'm not asking for realism, but believability.
Apart from that your avoiding your main weaknesses, or the hard bits by taking shortcuts on the feet and hands. Either with 'manga boots' or using weird mechanical stuff. You need to nail these things, they look fine on a blank sheet of paper but as soon as you try and place that figure in a 3d space with wonky feet it won't work.
Sorry if this all sounds harsh but I REALLY am trying to help. you may not be quite there yet but you can be, and that takes the ability to look at your own work objectively and welcome this sort of stuff, I hope you get what i'm getting at
all the best