In the mean time, I think we should list of some of the iconic besides Djibouti that could be arted so we can have everyone weigh in at least. Not including the shit Aaron or somebody else has already covered of course.
Some other possibilities.
1: Viktor and Juhani anything. Seriously, the importance of that story line in the development of what PoW became should not be understated.
2: Canadian beach landing in Cali. Not a serious scene, but still fucking iconic.
3: Assassination of Tejero. Big scene, fairly momentous.
4: Battle of Milan. Probably the most enjoyable pre-Spanish-Ethiopian War battle in the entire RP.
5: Though the big China scenes are pretty well covered by Aaron's art, the general ambience of the Chinese Opera captures a lot of China in one swath, in terms of setting and important characters.
6: To me, Spain's iconic image is wealthy people and politicians partying on zeppelins above Madrid.
7: Sevan. I might be partial to Sevan because I spent so much time writing there, but I think it deserves a little art.
8: I don't even know if this is canon anymore, but as it strange as it sounds, the Spanish and American battle during the blockade of Boston is iconic to PoW for me. An African agent watching from a telephone booth as Spanish and American ships duke it out in the distance, and a New English freighter chugs forward full of near-privateers... I dunno, I think that is a great symbol of early MCF precipice really.