Nice! I have H. schneideriana, but not the rest. They are so cool to me. What I love the most is actually the texture of the stems-- whether fuzzy or almost spiky. I do like Asclepiads is general (I have a hoya in my limited collection as well-- publicalyx "pink silver" which I love-- it's small but a workhorse. I need to repot it!). There are some genera and habits that I think I just about like everything in it... all the way up to the family or subfamily level. :)
Your plants are just gorgeous. I've found that even though the huernia supposedly like some shade, mine bloom better in a sunnier location, especially if the pot is crowded. Maybe stress/maturity?
