Well, I got a successful download on the third attempt
The inability to resume broken downloads is a killer with such a big package (and an occasionally dodgy internet connection).
First impressions are... Wow. Looks really nice, a bit too dark perhaps, I kept having to zoom in to check out the models properly
The size is a concern... 60 frames for animations is huge, and shouldn't really be needed, Glest interpolates between the frames, so you could probably get away with a lot less. Also, regarding texture size, while I know you want everything to look a good as possible, you need to bear in mind the typical view distance, the game isn't generally played zoomed right in, so smaller textures will probably not make much of a difference. While it's probably a pain to have to reload the game all the time, test often in game (not the g3d viewer), using less memory for textures with such large factions would be well advised.
But awesome looking mod, keep up the good work