Vin,
Nice work for your 1st shot. I see the areas that are buggin you.
If the customer is cool then it was a good experience for you.
Next project will go even better.
Watched them build this one in my new place.
Seemed the secret for the good fit is to "shape" the rock by chipping away with a hammer.
Was really cool, guy would pick one up, look at the wall, look at the rock, whack it, turn it whack it, 3-4 times at most and bam it would fit right into place.