Wow, I missed this post first time round. Excellent colour choices - looks close to Estoril Blue to me in the middle pics, Kingfisher (which I believe was an Audi colour) in the first & last pics. What is it called?
I had Estoril Blue on an E46 (M Sport rather than M) and it used to get *a lot* of attention, just for the colour. Your car must look drop dead gorgeous in real life.
Loving the headrests. Awesome, unique M5!