Dark & Lightby
saraclicksComment by FrankRobinson: HI Saravanan, welcome to the Critique Zone!
Interesting idea, a portrait lit from above. Tricky, because of the lighting angle and the shape of the head. Obviously in a traditional portrait the emphasis would be on the eyes (especially for such a cute little guy!) but here that is just where the shadow is guaranteed to fall. Perhaps an opportunity for a story? Something along the lines of the 'forgotten' or 'anonymity'?
Technically, it could be better - it's pretty soft and the lighting is blown out on his shirt. I'm surprised that you went down to f1.8 on this lens. It'll definitely take it but it doesn't give much margin for error. You could easily have stepped down to f5.6, where this lens is razor sharp.
Artistically, for me the real problem is that there isn't a story to follow here. It's a compositional problem - with the eye automatically moving left to right, I prefer an isolated subject at the right (end) of the frame rather than the left (beginning). The light/dark boundary also runs straight through his head, which is unfortunate. And finally, his vertical position in the frame - its very central surrounded by lots of space. Just doesn't grab me.
I'm sorry if this all sounds a little negative - the tweaks to have a really great shot here are pretty small and your model is fantastic - I am sure you could ribbon with him if you keep playing with the settings and shot style. I hope something in this rambling is useful to you!
Happy hunting,
Frank.