Need a bit of help on this sketch

[Lucky Lass 528]

Ok so, this guy is a new design that I bought just today and I loved him so much I instantly began drawing a ref. page.
However I had forgotten that I am really rubbish at drawing wings XD After five or six re-draws I ended up with these but something still feels off.
Any advice or a re-line if you want would be very much appreciated, and yeah I know he got Celestia tail on accident *headesk*



I also can't seem to draw legs today...