I've really liked this hold so far. Sometimes it's nice to play through a hold that doesn't require you to tape clear plastic bags to your monitor and make notes on it.
I like that level 4 is starting to have some interesting challeges, and as long as the difficulty continues to increase gradually, I think the hold could work. (If on the other hand you were planing on making the first 13 levels super easy and the last half impossible... well...)
I also liked the combination of roaches and wraithwings in a tight spot together, which was something that hadn't really been exploited before. Things start off well, then all of a sudden there's two wraithwings at the head of the line that aren't advancing- can you attack one, or retreat?
Anyway, so far it's fairly enjoyable even if some of the rooms seem trivial to us "
expert"
players. Keep up the good work.
____________________________
And I can recall our caravel: a little wicker beetle shell with four fine maste and lateen sails,
its bearings on Cair Paravel. O my love, O it was a funny little thing to be the ones to've seen.
-Joanna Newsom "
Bridges and Balloons"