Figured it was time to feature what is slowly coming one of my favorite random Derpy personalities, General Derpy by Equestria-Prevails.  There is no fanfic behind this (unless I missed something), more just whatever Prevail’s mind produces.  An obvious war future that seems to feature Luna as the leader, such as the above picture.  There are pictures on Prevail’s dA of Captain Trixie, so I’m assuming this is a meeting of the leaders of this possibly war torn Equestria.
I wish there was more (I might be missing related pieces not involving Derpy), but as the collection grows, so will this article.