Stone Wall and Floor Texturing

For my final timepiece I was unsure on how to texture a stone wall and floor and how to make it look convincing as my work on backgrounds was very minimal before. For the room for the snake to sit in, I wanted it to look old and minimalist, so a large and varying chunks of rock would suit it better then something like bricks. I settled on using a similar technique that I use on my characters and objects, and it turned out to work fairly well in my opinion, clearly being a stone wall.

Wall 1 - http://www.tonytextures.com/free-natural-stone-wall-texture-photo-gallery/
Wall 2 - http://www.tonytextures.com/free-natural-stone-wall-texture-photo-gallery/
Wall 3 - http://www.tonytextures.com/free-natural-stone-wall-texture-photo-gallery/?nggpage=2
Wall 4 - http://www.touchoftexture.com/stone_n_sand.html

In terms of the flooring, I wanted simple stone slabs that had some wear and tear to them, making them look a bit uneven. I created these by drawing something similar to a checkers board on the floor, and then going across the lines again but making sure the lines were uneven and jagged, and then finally adding lines over the remaining squares to give a cracked effect.

http://www.lapicida.com