It seems that he is extremely gifted and works at his craft in an assiduous and intentional manner.
Gracias,
Glenn
Edit: sorry for the verbiage.
I was going to use "studious" but that didn't sound right. I was trying to communicate two concepts I see in his work.
"done deliberately or with a purpose in mind" - intentional...
and
"showing great care or attention" - assiduous