A copy from the page 25 of the 17 comic.  
I love Andy price work on the comic of mlp:fim when I first saw is draws I thought about the work of Don Rosa on the Scrooge McDuck series.  
I thought about that because of the shades that Andy price does are very similar, that and all the small important details, like feathers, body damage or the loony background.  
-Cutie mark isn’t correct  
-The crow (and part of her horn) is missing because I’ve underestimated the size of the paper.  
-Some feathers aren’t correct.  
-The diamond necklace too.  
-Hair obliviously.  
It’s simple to copy not to create.  
Please make a constructive comment, I would like some feedback so I can make my work better.  
Have a nice day.
 
PS:If you want to see some similar art “pony berserker” has some beautiful drawings too.