Wow, this is pretty and well-engineered -- and
fun. You clearly put a lot of thought into it.
I really like the gentle curves of the background greenery, and the way the spearhead-like tips on the posts, and the matching bases, are interchangeable separately from what colour the flowers on the vines spiralling up them are. Great idea, great execution.
I'm also impressed with how cute and identifiable the monkey, butterflies and sloth are (You didn't even mention the sloth! The sloth is awesmoe) but in my experience, static animals seem weird in KS. Especially in a jungle environment, I'd expect the foliage to be teeming and crawling with critters, rather than populated by frozen, staring animals that make Juni feel like she just wandered into a taxidermy showroom.
Since the animals you made do look so nice, and match so well with the rest of the tileset, though, why not make them into custom objects? Salmoneous gave me a 'boost' recently that helped me finally figure out how to do CO animations, and I'd be happy to pass the help along if you haven't done a KS spritesheet before... or even make the COs for you, if you want.
Of course, some people are happy to use static critters in level design. My opinion is just that, not an Inviolate Law of Tileset Design.
In conclusion: I look forward to using this tileset in my own levels. It's already giving me Ideas.