This is a skin for a game... so the important question for every skin in the workshop is: Why should i vote or even play with this skin? Does it look pretty? Can someone else than the creator relate anything to that skin like on a emotional level? Does the design fit into the genre of the game? And I do not see any reasons why i should play with this skin or vote for it... ...why is it all blue?! What's about the grip and the other stuff? Sure you do not have to colorize those things but does it fit to your creation? Just keep these things in mind when you work at your art. The whole image has to fit.

I like it mate, nice aesthetics with great exectution and ideas. If you did another iteration of this skin it would look good if there was a bit of colour difference in the sky, maybe a sunset with some nice yellow and orange tones, or even a pink haze. Regardless, I really like this and I hope you had fun making it.

But, what is wrong with my work?
this would help me improve my future works

Anyways thanks for your reaction

do you know the "Wooow! That's pretty good!" meme? :D just replace the "good" with "bad" and there you've got my opinion ; )