There's some really fun stuff here. I like the dios you've put together, and some of the swaps you've done are quite nice, and ones I hadn't thought of.
Some of the ones that stood out to me were some of your Endor Rebel characters, and your "Bib Fortuna" Jedi. I agree with Chewie that you're ready for the next step, and should try some limb swaps and get your feet wet with some paint applications.
Another thing to note: You might get more feedback if you used a hosting service so you could link your pics directly in your thread. I know a lot of the time I skip threads that link to another site: I bet a lot of others do as well. Laziness, I guess. But posting it in your thread allows you to post your comments on what you were thinking or were aiming for in your creation, and to me, that's part of the fun of seeing someone's work.