Thanks everyone for your input on which idea to work on next. It actually motivated me to want to do all of them! But I went with 'D' to start first. My hesitation with that one was my concept of him lying on a bed of flowers...and I knew it would/will be tedious. Though I dove in and am really happy with it so far.
While I strive to make the guys in my paintings attractive according to my tastes and aesthetic, I usually don't go for what I would call the 'pretty boy' look, however, now that I've started adding the bed of flowers his 'pretty boy' look seems to really fit for this piece.