The overall piece isn't bad, however the depth isn't the best. I love the lighting on both planets but it doesn't look like the colliding smaller planet is traveling. It looks like it's just stuck there. I see that you tried to create the "wind" effect behind it, but spend a little more time and try to get it to look like it's traveling at speed.
Take this tip. Get a stock render of a cracked road. Take it on to your canvas and change the blending mode until it looks ok. Use a soft brush to take away what is not needed and change the hue and saturation until it matches the orange/red colour of the blast. :y:
Thank you, I'll have to get you to give me your opinion on my other maniplulation. The link is in my signature

:y: Thanks so much for the opinion!