Yeah.. idk whats up with it. when I saved as a Gif, it's colors all changed.. the preview has the colors I actually used. I need to learn how to do transparency.

 I love it!  I pasted into paint and darkened the background.
It became much more clear and looked excellent!
The green light really shows nicely on the floor.

Pretty good, though too dark. Can't see the details. Your preview pic is much more readible.

Get any other tiles done? I'd like to see 'em.

Lovely rock textures. :)

Looks a bit more like an entrance xD