I think the deck list is trying to be too many archetypes at once.
I would either focus on;
- being Eldrazi, with some green.
- being a deck that gets UrzaTron, but without green.
- being a deck that's mono green urzatron.
Those are decks that have proven mana bases, what you have right now is taxing a bit too much. You _can_ do it, but then I would recommend giving up the utility lands for forests and a
Wastes (which is a bit of a shame, as those utility lands are great to tutor with expedition maps).
But right now, if you play games, I am worried you will be frustrated too many times.
Cutting
Eldrazi Temple just seems very wrong with so many Eldrazis ^^