Yes once you have climb it's possible to jump over that, and in general there was a lot of backwards and forwards-ing because I wasn't so sure where to go. Found one void. Also I can't quite understand how Juni got up to the egg room without any power-ups; in fact it's impossible to get back up there no matter how many power-ups you have - i had to use the cheat option!
The ending was a bit abrupt.
Otherwise it was a well-made level. Good atmosphere. Good difficulty as well, it was definitely normal, bordering on Hard at times.