This was excellent!
Kestrel was really fun, detailed, and made great use of the terrain. I could feel the Nemesis inspiration from the very beginning. Forces were kept really realistic for the most part. My only complaint about this ride would be the zero-g roll that threads through the loop. I think the train takes it a bit too fast and that resulted in lats around 1.6 if I'm remembering correctly. Not bad by any means, but probably a little higher than what B&M would have on a real ride. That being said, I loved that element and thought it made for a great finale to the ride. Overall, it didn't detract much at all from this super fun invert with a realistic layout.
Adder was a really cool concept and a lot of fun, but felt a bit underdeveloped compared to Kestrel. I feel like it could have used a station building. While I can't tell what kind of forces the ride has, the track was super smooth and felt like RMC's shaping style. It's definitely one of the most unique shuttle coasters I've ridden. One last thing I thought I'd mention: I got a bunch of error messages telling me certain things wouldn't load at startup. Everything looked right to me in the sim though.
Overall, this is one of the better parks that I've downloaded from this site and I look forward to more releases from you!