Hey, @Anubhav Saini! Long time! :) Overall, I think this is an intriguing and interesting drawing! Since it's an imaginative piece, you can rest assured that it's okay being more loose with proportions. I also think you've captured a good expression for the hand, so I don't see any issues to address about gesture. Now I do see a structural aspect that could be brought to attention: by looking at the drawing, I feel as if the telephone doesn't quite conform to what should be the volume of the hand, so I'd suggest making a few adjustments in its position considering the roundness and thickness of the back of the palm where it's standing. Here's a draw-over to illustrate what I mean. Hope this helps! And hope everything's fine with you. Keep it up!