It's my understanding the Revell Germany Star Wars kits are based on reference materials provided by Lucasfilms. Unfortunately, they were given the same reference materials as AMT back in the 70's, which is why the RG and AMT kits are so similar and contain many of the same inaccuracies when compared to the filming models--inaccuracies which RG was not allowed to correct because of their agreement with Lucasfilms.
You build-up shows what these kits can look like with a little extra effort. Nice work! :thumbsup