Plarail TOMY Thomas NEW RELEASES

And now back to the new Dokidoki Mountain Thomas Set. I was looking at the pictures on the stickers, trying to answer my own question:
 

(is that a dinosaur in front of the volcano in one of the stickers?)

So I was magnifying the pictures, and I found the pictures of Percy, James, Hiro, Gordon, Harold and (bear in mind it's a "Thomas & Friends" Set!) ...

... a treasure chest! Is that a treasure chest?



Yup, it's a treasure chest; what else could that be? Never mind.

Then, there is Bambi.
Is that Bambi?
I bet that's Bambi:



I'm still not sure about the volcano, but that's definitely a dinosaur!



What is that Tyrannosaurus Rex doing in a "Thomas & Friends" Set?

"Oh, look, kids love treasure chests, Bambi and dinosaurs, so we may well just put them on those stickers!" 

My only question is: Why? It's a Thomas & Friends set, for crying out loud! Why the dinosaurs and treasure chests? 

"Kids would like them." 

No further questions.