Nice mod. I'm defiantly downloading this mod and I haven't seen anything like this but I have a few suggestions. Don't know the names of all the features but I'll try my best.
Try to make the Glowing Mushrooms not spawn in packs. I defiantly like the glowing Mushrooms but when its in packs its irritating (to me atleast). Everything else looks fine, but I'd tone down the rate of the spawning Ice blocks abit.
Heh, sorry if this has already been done or if there's a config file, but all I had to work with were the screenshots. Haha, happy first reply for me.
I only see a 1.8 version on the GotoLink people keep linking, no 1.7.10 unfortunately. Maybe someone skilled enough can take this mod up where the author left off and make a 1.7.10 version as well as for newer mc versions.