WOW. This piece is really awesome. It's shows the mornings beautiful light can overcome fears and all that happened before can be forgotten. I think Nsslayer did a great job drawing Rainbow Dash in this pose. Really beautiful. I have to say though, the blue and purple strands of hair that flow above the ear don't look right, probably because the yellow, orange and red are usually the top half and the green purple and blue are usually the bottom half so it looks weird. Over all, SO AWESOME! This art also makes you feel like your flying in the sky.
Well first of all, I'll say I love this, and you're 10x more talented than me, so take my words with a grain of salt.
So, let us start! First off, the shading looks absolutely beautiful, and I love her slightly rosy cheeks. It really brought a smile to my face
I think her legs are a bit too skinny/small for the body, though that might just be my personal preference as to style.
As well, her mane seems a bit thin stretched. From what I can tell, though her mane has different colors, it is all one cohesive multicolored mane, not multiple strands.
I'm not sure if she has eye-shadow or if that is just giving her eye definition, but generally I do not think of RBD as wearing eye-shadow. Though, it looks absolutely wonderful for the picture.
Wing position looks a tad high, as I think the wings are supposed to come from the sides, but once again, it's personal taste. Though, I am not fully sure if that is her back wing behind the fore-wing, or if that's just the top arch of the wing.
Otherwise, conceptually I love RBD basking in the sunlight with her wings outstretched. The background is simple, yet it adds such a happy sunny feel, and the sunshafts look great IMO.