Solitude

Pros:
Very very nice artwork. I really like the shading/lighting for the whole piece it really sets a nice tone. My next favorite aspect has to be the beautiful use of colour, as its really striking and fitting. The pose and background give it a very dynamic feel as if he is in motion. It also reminds me of Christopher reeves' superman which is always a plus. Well done piece overall and I really like it (Nice composition as well)

Cons:
There aren't really any cons but some tips to make it better. It could use a little more contrast in dark tones to make it really pop. Also there is a little confusion of depth with Superman and his background, I feel that because of this it doesn't quite make him feel like he is floating, instead just put on a beautiful background. Also some darker tones in the sky would be nice as well.

If you could incorporate those aspects I really feel that It would be something else.