First of all, who cares how many likes you get on social media, that's not a gauge as to how good something is. I like your design, especially the top, the way it integrates into the sleeve. There are some little things that you could improve, so I did a quick sketch to show you what I mean, but over all, this is pretty good. Don't worry about what other people think, just keep at it and improve.

Well done! The first thing that jumped out at me is the right arm. I know it's foreshortened, but even taking that into account, there's some proportional issues. If the upper arm is away from us, which would explain why it's so short, we shouldn't be able to see the elbow. If we can see the elbow, then the upper arm shouldn't be this short. If the right shoulder is retracted, another reason why the upper arm is so short, then we shouldn't see the shoulder. Also the hand position looks very uncomfortable. I tried to do this pose myself and it's nearly impossible. His head/face looks too small for the size of the neck. Then there's the question of what's the focal point? I feel like it should be the face because of the blood and his interesting expression. But what's presented is his left leg and foot, which doesn't seem to be doing anything. His left foot is very relaxed. Also, is he jumping in the air or is he kneeling on the floor? If the former, the right leg makes him look like he's kneeling on the floor, which is not a very powerful position. Your rendering is really good though, very polished.

The first thing that jumps out to me is the lack of gesture in the pose, it's very stiff. I don't know if it's a stylistic thing, but the lack of gesture takes away any feeling of force. Also, the left arm and finger are creating a tangent with the border of the image and the pants. The head also feels like it lacks structure, and the right arm is too short as mentioned by others. I did a quick sketch to show you what I mean, I hope it helps :)

I really enjoy this challenge. The peterhanstyle demo was so interesting that it helped me create this artwork. I have entitled this work "the secret talks of the guardians". This artwork tells of a secret conversation between the guardians about the great war that is to come. You can see the bird guardian carrying a bag, it tells that he came from far to meet the lemur guardian with the aim of asking for his help in the war later. I hope my work will get direct feedback from Peter and Proko. Hopefully, happen :) Enjoy this challenge, keep it up. And thank you very much