Ankur, I am taking the liberty to critique your picture. Please feel free to ignore if it doesn't make sense to your style of photography:
1. First thing that I've noticed is the lack of sharpness in the eyes. And that again goes back to my stubborn inclination of getting the eyes in sharp focus. I feel that those twinkling eyes could've been more prettier with a little more precision on focus. Easier said than done, I can relate to the scene where these pretty subjects would be on the move most of the time and it becomes very tough to make them wait for a while.
2. The background is busy, there's lot of clutter around that could perhaps be cloned in PP. I don't know how to do it because of my poor processing skills, but someone in the group should be able to teach us for sure.
3. Oh the crop
Few things that you could do away with :
a) Bit tighter crop eliminating some space from the top
b) The extra hand intruding into the frame
c) Putting your subject towards the right end of the frame to give it a bit of depth on the left side of the image.
4. I am assuming that this was shot in the ambient light, perhaps with the use of a bounce flash, you could've eliminated the shadows on the face that is present due to those curled hair.
5. If there was no scope of bouncing the flash, then perhaps a fill flash of very low intensity, something that would come through a diffuser to create a soft light.
6. I get a feel that this was shot in a place where there's some light falling from top and you chose this place in order to shoot your subject in ambient light. The direction of light has rendered not very interesting bokeh. Perhaps, the light from sideways would've made it more interesting.
What else? Let the experts pour in with their comments, we'd get to learn more.