And I hear (after being gone for a week) that the Artist Training Grounds is back over at Equestria Daily! And I missed the first day...But that's only because I was in a car for 16-ish hours until 3:30 in the morning driving back from Colorado!
But anyway the Day 2 prompt is a pony traveling. Here we have Blue Moon and Summer Sun on a train ride with their parents. Where they are going, I have no idea. But we will probably find out soon.
It should be noted that this was drawn traditionally with pens and then colored digitally.