I'm probably gonna take a bit from the other critique. But, here we go.
First and foremost: splendid detail. Love the individual hairs on her mane and the detail put into the underside of her wing. It's very crisp and clear.
The detail is only better when you go and look at her coat. Great stitching and attention to patterning detail.
Moving to complaints, the shadow is a little weird as is the background. It's a lot on the low-rex side of things and doesn't really fit all that well with the piece as a whole and might be worth revisiting/drawing over to get its resolution up to par.
And: > Opera of Detroit.
Since when did Detroit go Cyber punk. There's a certain lack of decay.
Also, the cigarette is an interesting touch, interesting as I am not sure of the circumstances driving to their consumption But the renewed version of Google glasses yet manages to steal away from me more attention :3
Oh, great, now you got me thinking of a note I sent back and forth with another friend of mine with some ponies recreating the Matrix scene. Only with Rainbow Dash instead of Twilight taking the role of Neo...