Keep them humid, they look like they are having a rough time keeping water, thats why they are drooping. my clones perked up hours after i cut them. i kept them in a dome they held humidity, you can also consider something to foliar spray them with, i've started using jump start and it really does seem to help overall. those clones look like the right cuttings, how old are they?
after you cut the stem, did you put it in water before strring it in the powder?
i'veh ad very good effectivness with the root powder.. i aslo cut mine under water, then i maybe sure the bottom 1/2"-1" is coated in water and i stir it into the root powder, and pop it right in the pre moistened cube..