Slate Wall Display Who Would Help Me In Wall Slate Cladding Technique?

Who would help me in wall slate cladding technique? - slate wall display

I lined the wall of slate, I
me! I would therefore like the layers of each
rock, I've tried to do that, it sometimes works, but
not how I want (very
thin, straight), not planted, so that each
With the description of the instruments used, or even
useful skills or any other suggestions, thank you!