Thanks for collecting the contest entries!
Most of them should already be in levels/single/misc/contests. At least two (Las Ranas Hermanas, and A Neclace of Raindrops) moved to lemforum. The entries from the current Contest 27 aren't in the Lix main download yet, but I'll include them. I'll see if you have some levels that I've missed.
I don't know what's the best way to structure contest levels in the Lix main download. I've considered one directory per contest, but then some contests will have only one or two entries.
-- Simon