I think you may have them fairly correct. The only problem is that both the Bloodred, and the motley will produce babies with no belly pattern. I also produced some double hets (Bloodred, and Hypo) a few years ago and some of the 2xhets had plain bellies, so keep that in mind. Congrats!
-----
Disclaimer: I do keep several snakes in pairs, and some in groups. However I realize that things can go wrong, and I have to keep a close eye on those groups, to be sure they are not being adversely affected by these living conditions. Also if one happens to eat it's cagemate, it is 100% my fault, and I know the risks in advance!

What's wrong with using CAUTION?!?!?!
King Snakes! Who can make a better mouse trap?
~ Jorge Sierra www.SierraSnakes.com