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The Batmobile looks a bit too square and brick like for me but otherwise awesome job.
Really outstanding amount of detail. I love how you even drew several super detailed bats hanging form the ceiling.
Only thing that is really missing is the BatBot
This is what I love about 's Batman art, the attention to background, in fact I think this is the best version of the Batcave I've ever seen, it has all the vehicles and shows how they can get in and out (except maybe the Batwing).