Level 3 suffers from the same problem as Level 2. The layout is alright, it's just not big enough. 75 or so encounter areas, including two mazes, and entrance to another sublevel, a dragon's lair. Now if 3rd level characters want to try their luck against even a white dragon (which originally that's what was there), good luck! You're gonna need it. But it's there for the foolhardy or clever to tackle if they choose.
I only finished keying a fraction of the level. The big room with the pool and several nearby rooms was a lizard man lair with a couple of pets. That's about as far as I got.
Level 4 will remain unseen in this series, as it was actually four separate sublevels, each one's map was actually a level map from the video game Gauntlet, and each I planned to have an elemental theme, with appropriate monsters. It's one of those things that seemed like a great idea at first, but ended up not being that great upon realization. Still, as actual sublevels to the new megadungeon, I think they will be fairly cool, so I'm not gonna scan those maps. At least one person who may end up playing in this dungeon is reading the blog.