You could make a couple of pretty good lists with those models. I'm not going to crunch any numbers for you, but here's a good
online army builder to check out.
Kaya's number one weakness is her inability to handle swarms of infantry. To alleviate that, take the Sentry Stone, Wayfarer, and Tharn (always take the Shaman if at all possible). For her beasts, I wouldn't take more than 2 heavies and 1 light. The Satyr is great with her. Have it use its animus on itself, slam an enemy model, and follow up with 4 auto-hitting POW 15s. Then Spirit Door it back and do it again next turn.
With Kromac's Fury 8 in Beast Form, he can handle more beasts than Kaya. He's also better at slaying infantry. You'll want the Tharn and Sentry Stone still, but he doesn't have any great synergies with the beasts you have, so take what you like. The Woldwarden might be appreciated though, because his animus can prevent your opponent getting to Kromac (He likes being near the front).
Good luck and let us know how you do!