Awesome work! Your shading is amazing and you do faces super well!
Okay so the only critique I can think of to write up would be for the first image.
I'm actually a bit worried about writing this up because I know I'm not always 100% either but...
In this case, I felt that the line of the hip on
our right started way too high up making it look like there was no midsection. The other side had a nice long line to it but that side… felt way too short.
Have to remember where your ribs extend down past the bust which sorta determines the angle of the upper torso/chest, then you have the waist where you gain the flexibility to twist/bend the body which then flares out into the hips.
This is sorta a rough sketch over of what I mean:
Again I could be completely wrong but this is the impression I got based on what I can see in the cropped image.
Something I like to keep in mind for body proportions is that you can use the limbs you've drawn to determine other body lengths. In this case I always like to roughly say the elbows line up with the waist and your wrist then lines up with the groin. If you imagined her with her arms straight out alongside her body as opposed to crossed, you can sorta get an idea on how long her torso should be and where her hips would start.
I couldn't find an exact image to match what you were drawing but here's a link to something Artgerm drew that is similar to what I think you might have been going for from below the bust to the hips. Mainly just the amount of distance from the bust to the hip line.
But yeah, aside from that I think you're awesome! Your shading it super nice and the colours are great (I don't see any issue with them). I like how 'soft' your lines are, how they aren't stark and just 'add' to the image as opposed to just blocking out section of the image. It's like, yes, they are there but the aren't the main focus which is lovely.
