Great first time tour! I really enjoy nature tours myself and would love to do more. A couple of tripod errors i see, but no big deal at all.
Question: How did you stitch your Nadir? Technique and shooting style?
I'm still working on my shooting technique - I jumped into VR and virtual tours at more or less the same time, after long experience shooting gigapixel panoramas with a Gigapan robot head. I'm shooting with a Nikon D800e/Nikkor 16mm/ Nodal Ninja RS-1. I started with 6 shots around at 0 incline, 1 Nadir at -90 and one zenith at +90, but I had stitching problems and lots of photoshop time. The most promising technique so far looks to be 6 shots at +7.5, 2 nadir at -90 and one zenith at +45. I'm still experimenting and am certainly open to suggestions.
The panoramas in the tour are a mix of all of the patterns I've tried along the way. I'm curious about where you saw errors - I'm sure they're there and I'd like to correct them.
Thanks for your feedback and encouragement!