Are you housing all your frogs together by species? Your little Ornata is bite sized for the others and may very well be eaten one day when you go to check on them.

They look good other than the two you mentioned with issues. The Cranwelli does look off. Keep up the force feeding he may snap out of it. The dark Joaz looks weird like you said. I'm not sure what is wrong. Possibly just recieved some porr genes, but at least he eats and that is good.