Hey, Welcome to JD's customs section.
Sith Lord - Original looking. His face didn't seem too menacing until I saw the side of it, nice job on this one.
Vader Vs. Dath Maul Star Wars Tales - Pretty sweet. They'd make for a nice diaroma of some sort.
Other Vaders - Good use of refrence pics and different parts to make these Vaders look damaged.
ARCs - Very cool. I need to make me an SA ARC soon. Also like the ARC Commando. He'd fit in pretty well with all the other ARCs.