Well, let's see... You've got one far to kind critique and one that is far to cruel. So this time, let's try and have one that's a bit more objective.
The Art I'm afraid to say is a bit bland. I can tell who the characters are, which is a definite plus, and they are expressive, another plus, but considering what is possible now a days thanks to digital media I find this overall underwhelming.
I'm afraid to say that this does fall under the "I've seen this before" category to an extent. Discord forcing other to say things they wouldn't normally by reversing them? seen it. AppleDash? seen it. both together? Seen so many times it's beyond compare. However, the extra voice of Pinkie finding the entire thing hilarious is at least not something I see often, so there is that.
Unfortunately, it leaves little impact for me. Those who will love it -either because their love of the ship, the show, or your art in particular- will of course love it. Those who don't, may be mildly amused. Those who hate the fandom will of course give hate. Those who don't care, well.. I can't speak for all of them, but will probably give a resounding 'Meh.' However, this is fanart, so of course it is targeted at those who would enjoy it anyhow.
Overall? Not terrible, but not necessarily good. Just... well, average.