Heya, I found your pretty line art because of the colored work here
I left a comment there and I think you as the line arts creator deserve some words as well on how actually nice your "scratch" was made:
Of all MLponies I've seen so far, this is one that doesn't "look like all the others" to me. I believe it's a canon character from the series though, but it looks unique on this picture. Like it has an actual character concept and that there's a story behind the picture. Behind the scenery the character is currently in. Making me wonder what happened before and/or what the character is thinking. What just happened to him or her that makes her having an expression like that. Or maybe the character is expecting something unpleasent to happen next?
I don't know much of the series, but this here doesn't look like most other fan art where people just draw every character in the same position with the same expression and so on.