I know it has been 29 days. But your pictures aren't very clear. Maybe you could try darken the lines with a softer pencil or pen, and then photograph outside with sunlight. Also put the camera straight in front and not an angle.

The main issue I see is that the cubes are very warped. You have to imagine that the edges of one side of the "boxes" continuing further and converging at some point. I drew an overlay so you can see what I mean. I think you drew the twists very well!

Still learning myself so keep that in mind when you take my critique... I think the coolness isn't the issue. I think its the values and saturation. The colors on the shady side should be darker and colors on the light side should be lighter and more saturated. EDIT: I'm not sure if the light side being more saturated is a rule, I don't think so. But I think its what I would do in this painting. You could try doing the opposite and make the shady side more saturated instead. i just think that it should have more differences in saturation than it has now.

With foreshortening the general thing rule you can keep in mind is to draw the oval becomes more circle-ish,. Most of your twists look fine! Maaybe your ovals need some more practice in terms of line confidence and accuracy. They are a bit wonky sometimes. I always do two circles/ovals in the air before setting the pencil on the paper and I try to not to hesitate. This helps with accuracy and line-quality, but takes some practice, I still struggle with it too.

So... I'm still learning so anyone can correct me if they disagree... I think you did really well in terms of temperature, but I think on the top the monster is missing some ambient/reflective light. About the smudging. Are you pianting in photoshop? have you played around with settings of the smudge tool? Photoshop also comes with some brushes that are made for smudging, and give nice texture. They are named KYLE brushes. They can help with getting more of a furry or painterly texture instead of blurry. As a last point I would not smudge the edges of the eyes too much because they end up blurry or furry. I hope this helps! ^_^

I think with this specific exercise I wouldn't worry too much about wrong proportions or it being "too rough" and really focus on the movement of the body and drawing confident lines. You could indeed push the some poses a bit more and exaggerate them. However there are some really good ones here! I'm impressed by the running pose you did from imagination.