This is beautiful :) as for corrections, I think it you should use some harder edges in your work. Marco Bucci has an amazing video on it.

I loved the art as a whole, I can visualize emotions in it, even though it is very good, as your request was for criticism, the only thing that caught my attention was the face, looking at the region of the nose, because according to the angle of the head I believe you could have projected it slightly more out of the edge of the face, if only a little, because as in the part of the body the fabric of the clothes brings a lot of movement, I get this feeling of a straighter face when I look exclusively at him, but this may have been on purpose. I hope I had the ability to help in some way, your drawing was amazing 🙂

looks beautiful. What do you think is wrong? If I wanted to nit pick, which I don't really, I would say the lighting is a bit inconsistent but its a quick sketch if I were you I wouldn't worry about that at all.

Hey RItesh, The one thing that you need to do is to stop using black to darken a color, this makes the colors look dead. Instead, you need to color shift and use either cool or warm colors in your shadows. Also, the hair looks kind of flat because there are no highlights. I did a quick paint over to show you what I'm talking about, I hope it helps :)

This is really nice! The only thing I noticed is the far nostril is missing and there needs to be a darker shadow behind the ear to help pop it forward more. Other than that, I really like it, especially your subtle rendering. Nice work :)

Such a good combination of colors, loved it, Its not perfect ofcourse, but is pretty good... For now you can try to paint or atleast draw outine of individaul parts like face, hand and back understanding the anatomy and in full detail with lines to guide proportions and perspectice... also finding some reference to draw it again, and you will know where you went wrong by yourself....