Yeah the normal map isn't right, I think it was something to do with my export settings. I'm new to this so it's been a process of trial and error, but thank you I will definitely get in touch if I have any questions:)

The normal map seems to be Inverted, the grout is higher then the stones. was this intentional? and you can get a nice looking texture with a smaller file size at 256 x 256 if that's what you want to do. Other wise both look grate. Keep up the good work. "rate up" File size doesn't matter ;) If ya need any help shoot me a message :) I always have a open ear for a fellow creator :)