This is a masterpeice....your modding is superb, and getting better from mod to mod...now you are jsut mod machine - and I'll sure play your each mod
Cool weapons, amazing use of fog, cool enemies, Earthquakes, ambient sounds....sooo moody...different themes...I looove the grass sprite and it's use....I love everything about this mod!!!! This is such a cool mod
On a weaker side, if you want to get even better
1. You should make 2 forest texture variations, as the one with the stars behind the trees look weird in places not near the edge of the map, especially as 1-sector "column" in the middle of a level. You should make one with black background, without stars as well.
2. Some wolf3d bone sprites are too bright, you could darken it ...mistakes of many mods I've seen. Otherwise, it's like glowing (for no reason) bones in dark rooms (which almost all of your rooms are). also the blood near those bones is too bright as well, and not consistent with other gibs. Wolf3d art in your mod looks toony, you could use different art. There are many games you can rip bloody bones from.
3. Doom torches fit the theme perfectly, but look weird non-animated.