Headthump: interesting layout, very short, the first two rooms were the best ones in the map.

Jacek1 and 2: Bad texture alignment, some cramped parts. No big issues, but these maps are probably impossible to finish if you don't treat them as speedrun maps, the second being way easier than the first.

Xen: good way of adding quality with quantity, with less amount of time spent than usual. Gameplay wise, is long and fun. The one that gets closer to the theme the most.

Zwiffle: another pair of maps for speedrunning. These ones can be completed by playing a more normal way, killing all the monsters, but it isn't advisable. The first one is above speedmap level in brushwork, the second follows more the theme than the first in a different way from Xen's. Both provide a fun time.