It doesn't look too bad.

Are you playing Points (Comp) or Power levels? If you're using points, then Toxic for the Gants is wasteful, and you don't need to buy full Broods
od Thropes...so it depends how you'll be most often playing...
What rides in the Tyrannocyte? It's an expensive "ride", so it should have a specific use in mind, I'm guessing the Devilgants+ Termagants? If so then I think it can work, and down the road, you can build a big ugly to put in there.
Good Luck! And welcome to the Hive Mind!