Joel, I can do small-sized photo manipulations fairly adeptly (go look at page 16 of the Tesseract thead on Ad Astra if you want to see). If you want me to try it with some of these, I could do that once I've finished my chapter. What uniform would they wear, though?
ETA: I should add, I can do humans. Putting heads on bodies. I can even do minor alien stuff ... I could make someone a ridgeless Romulan or turn them green for an Orion or add spots for a Trill ... but I probably can't change Michelle into a Klingon, and I definitely can't change Angelina into a Cardassian.