My First Map - Cthulhu Caves

Hi everybody!
They say that you should start small and simple when designing maps... I ignored that advice and got rather carried away.
After heaps of help from the community, I've finished my first map in CC3! It's a cave network, with various remnants of monsters, smugglers and cultists (there are some guns/modern relics knocking about, so it works best as a 20th Century map).
Thanks for all the help, and it's been fun learning CC3/DD3!
I'll put a higher-res version as an attachment (if it works).
Comments
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This looks really good so far. Are you going to do lighting throughout the map?
Ooh, yes, I'll do that!
Cheers!
No, I'm going to play it as only a few places have torches (where people have been previously). The rest of the dungeon is unexplored, but dark (though I've lit it on the map - I'll use a fog-of-war effect on the virtual tabletop.
It takes a good 30-40 seconds every time I turn the effects on and off (probably because I've done something really inefficient), so lights seemed like they wouldn't be worth the effort.