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Hello SVin! Your perporsions are very nice! What I would do would be to work on the pourporsions of the head to the body!

I think you could have benefitted from making the head a little larger, otherwise it looks a little disproportionate.

Other than that your anatomy looks pretty decent.

great. bigger head

The gesture of your drawing lokks to me a bit stiff, though i havent seen the pose of the model. I love the style and simplicity of your drawing, however i believe the head should be a bit bigger and you could show more muscle and fat definition, although that is up to you and the style you are going for.

I think the pose is captured quite well. Maybe the head is a little small compared to the body based on the 8 head reference canon, but only slightly

Hello, I see you made gesture drawing. Pretty dynamic, but there is small problem with proportions - head and feet’s are kinda small. Increase size of feet and head next time. 
Here’s a picture shows proportions of head to all body.
https://ibb.co/yJ2DL8R