I also have trouble getting photos of the true colors of the dark leafed sedum Once in a blue moon I happen to get a photo that shows what I see.
Ofm, I think 'Red Cauli' is somewhat of a semi-upright. It seems to have an arching form to the stems.
It also seems that the more sun they get, the straighter the stems stand up. Of course they will need more water in full sun, but not to much. Otherwise they seem to have a problem with staying healthy if they get too much water.
I like your Linda Windsor. Has it bloomed for you yet?