The more I look at it, it makes me think - Dash of course looks great (love the colours blending, lighting is perfect) from the expression to fetlocks, but the background is quite the marvel here as well. Very simple, lines almost look like random squiggles, but you look at it and it looks beautiful. Just there, noticeable and unobtrusive, sketched and yet having so much detail. Ponyville especially - you look at it and you just know what it is, there's the Town Hall, the bridge feels exactly where it should be (lots of shots in the show picture it with hall behind). That's probably what I love the most about your style, bringing together simplicity and complexity in one.