goggle tells me thats 28c its on the high side yes but not so much to panic,no real signs of heat stress,can look a bit like this
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canoo effect edges lifted up.RH if its not under 30 or over 70 again dont panic.
coco can be trickier than soil,coco likes a wet/damp/wet cycle not a wet/dry cycle like soil.keeping track of ph more critical to,and ofcouse coco has 0 food and no buffer so to speak.
but theres only one way to learn and thats get stuck in head first
the first 2 weeks most of the work is going on underground building root structure,can appear to be slow then week 3 things start to take off.
pale ? hmm its so hard to tell,small differences in light at time of pic,and the brightness of peeps screens.being a smidge off is ok.
good luck n keep er lit.