Totally forgot to subscribe to my own thread so Larb, I'm just now seeing your comment. Thanks for the input! The main walls are all the same layer and used the same texture (a photo of marble). I think the problem is that I wasn't adept at using layer masks and I also drew the outlines, which makes some of the wall pieces look inconsistent. But this was my first digital attempt with Photoshop and a Wacom. I thought about re-doing it now that I have more digital experience but I'm currently cranking out a bunch of other maps for my game.

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