Your posters are good, though it doesn't look like you fixed the credits for Empire. The print size seems small for what you are charging; I'm assuming these are unlicensed posters due to the mistakes.
What would endear your work to me and others here, would be for you to give us some lovely high-quality giant-size versions that the cover designers can use for custom sets ;) Or even just some clearer jpegs without a watermark would be great. Think of the free advertising if your posters are the next set of covers for Harmy's Despecialized Editions!