Thanks for that analysis, really.
Also, all of the Han Solos are from ANH, and the second Leia is from ROTJ. The main issue here was to try to have as much quality on the images as the right position/lighting, so (even if i tried) the fact that they are not from the movie itself didnt bother me too much (It did with Luke, beacuse i think he is the one with most changes, and with Leia's hair). Lando from Return of the Jedi did indeed bother me, but i couldnt find a good Lando with his General suit, so i changed his Bespin clothes from blue to orange. But if you are able to find me some of those right images with enough quality be sure ill add them and ill thank you.
And the fact that they look exactly like the Prequel posters was made on purpose. Actually, i had the "rule" of not adding anything to it if there wasnt on the equivalent poster... Ok, maybe its stupid, but for me was kinda an inside joke for how unoriginal George Lucas is, and how using the original characters to the prequel posters would FIT perfectly (what? I have fun with that stuff) Like Vanderios said they are "Retro-prequel posters". I wanted them to be recognizable, so its not really a copy per se, its more a reference...
I wouldnt like to add the Two Death stars... Two round spheres (or part of them) wouldnt look good, they would just look like something floating, and they arent "good looking". On the other hand, indeed Bespin on ESB could fit, even i thought of adding it, but i didnt because i wanted to keep it like the original poster... Just character faces and a hint of the most important scene/ship.