As previously said good going for your first attempt, plenty going on and you will improve everytime you do one. It does sound like youve put it on a little too thin, though I only use 3 medium coats of mask when do bodies so just depends how thick your putting it on. I also speed up between coats with blow dryer and then leave the 3rd coat overnight to dry out properly.
I like the fact youve gone for it with this shell so as Ian says great things will be expected on your next lol
