Some from this weekend.
Frank,
You've certainly got some luscious blacks in those shots. I like them (and the rest of the composition of course).
But I'm also reminded of the TV series "Rome" which is available on Blu-ray and which was shot with the 'RED' camera. On my 65" Panasonic plasma, in THX mode, I'm continually impressed with the luscious shadows in this series and the excellent potrature style of photography with one half of the face in shadow.
The dialog might not be up to Shakespearian standards, but the quality of the photography makes up for it.
The point I'm making, and sorry for crossing threads, is that format is not necessarilly the reason for this. The resolution of the RED camera that shot this series, and the size of its sensor, is probably no greater than Canon's first DSLR, the 3mp D30.
It's technique that counts, and you've got it. It so happens you're also using MFDB.