After posting last night's chart of reds, I began thinking about all my mixing exercises. One of the points to be taken from all those charts was that, in general, nearby pigments make the most saturated mixes.
Mixing the last pepper with the red chart led me to think that Permanent Alizirin Crimson and Cadmium Scarlet just might get me close to that rich red. Actually, I think that mix pretty well nailed it!
I still had difficulty with shading.Crimson washes weren't deep enough. Payne's Gray seemed too drab. So, there's more to ponder, as usual, and that's what keeps me going. ;-)