I'll assume this is an appropriate place to post this.
Well it's not at all obvious from the board layout, but the best place for new levelpacks is the
Lemmix Levelpack Topic.
Overall these are pretty solid puzzles, not too trivial and using some nice tricks. I like level 5 especially, it's quite a bit harder than it appears at first. It could possibly be compressed to reduce the time spent building though - this tends to bug players, especially since the original levels were very builder-heavy
.
As for the Revolution levels, I can't really comment on how well they're remade since I haven't played the originals.
On the technical side, I noticed levels 3 and 4 have objects outside the level boundaries. This happens when you put an interactive object (entrances, traps etc) too high, or off the left side of the level (y<0 or x<-16). If you notice one of these disappearing between saving and loading, that's why - the editor incorrectly interprets the position as being way off the bottom or right of the level. You can find these via the the level list (F9).