Thoughts? My advice is that it is, perhaps, unwise to bring only 1050 points to a 2000 point game.
Automatically Appended Next Post: Oh, good, you edited your post so I could see the rest of your army list
I wouldn't take Crushing Claws on the fexes. I would give them all 2x Devourer, for maximum dakka, and Mycetic Spores, so they can get close to the enemy: it would be worth cutting the Mawloc for this if necessary.
After that, you have a lot of choices on what to do with spare points. Regeneration on your Flyrants, perhaps.