I like the composition of this a lot. It is good for the topic too - sort of a "textures in textures" thing.

Something about the super saturated blue in the lower right (I think I see clipping artifacts when I look for them) feels unnatural. I realize the one vivid tile compared to the other pastel tiles is the part of the photo's charm, but it may be taken just a little too far.

I actually know the location of this shot, I think.
Parc Guell, the "Gaudi place" in Barcelona, Spain is it not?? (I shot the same wall last year!)
It has a nice perspective, although I would have liked some more sharpness overall, not the shallow DOF it has now...
Exposure is quite spot on, though some highlights are blown in the white ceramics, but are hard to get around I guess.
The coloured square second from the right is cut off a bit...would have liked the little corner inside the frame.

Wonderful details.
Great colors and exposure to show the beauty and the uniqueness of these tiles.
I agree with the colors competing for attention with how bright the blue tile is.