when did they start to curl ? was it before or after transplant? usually if a clone is transplanted and it doesnt have enough humidity and water pressure to support it so it will droop, so my guess, sometimes clones will look like crap for a few days but should bounce back rather quickly. The one in front looks like its got purple and red streaks and fan leaf stem, usually a PK deficiency, maybe. Id water them, test the ph and ppm of the runoff .. I dont think youll stress them too much if you water after transplant, i water all the time after i take my clones to soil and no problems ever. If the soil is too hot, then your leaf tips will start to burn and youll know if thats it a few days after transplant. Id just give it time and a big hug.