Due to lack of entries and hearing some more being close to finishing, I'm extending the deadline to 25th of November 2014.

This is no way meant to be a full review, just things that bug me, or should be corrected (considering it's a requirement or a decision I seriously question):

Blocks requiring electro to shoot, does not actually work in vanilla JJ2 (it's a bug). It got fixed rather recently. So technically, this level is plus only but almost completely playable in vanilla JJ2.

The bottom "Vault" area is pretty tedious to get out of as Lori. I either have to TNT jump or golden jump, which the average player isn't going to know.

Why did you rename the music file and make it a J2B? Renamed music clones do nothing more than take space, and there's no reason to use j2b anymore (exception being alternate boss tracks for levels that support vanilla JJ2, in which case this is not).