Byrin

I think you should work on your human anatomy. The figure is rather disproportionate and the pose looks very uncomfortable, unnatural and rigid. The values also seem very off and the range of colours are rather muddy. The weighting of the things on the canvas aren't right and throws the overall balance of the painting. This is what I see in a lot of your paintings and it's good now that I mentioned it, it's also something you should definitely work on.

You should think about buying some books or taking an online course on the basics of art like rendering, lighting, anatomy, perspective, painting, all of those kinds of books. They will certainly help you improve. And as mentioned before do some studies.

Another one you seem to have a lot of trouble with is learning how to take critiques. You seem very butthurt whenever I try to say something constructive you seem to not take it in and learn from it, instead you rely on people's positive comments but unhelpful to fill your drive to draw. If you really like art, you should learn to listen to everyone and swallow your god damn pride whenever you get a constructive critique.