I See 3 Options for much better view on Small species in all Enclosoures in JWE 2.
1.) Good idea would be a " Glass wall Fence " which is very week, so that only small species are not able to break

!
Gallerys would not be needet, like you wrote.
2. ) Right now its possible Using a glitch so we can breed small Dinosaurs in the Aviary hatchery and let them free. I do this with compys, Homalocephale etc. and it makes the aviary look much more allive

!!! ..... but we would need a regular option to breed Small dinosaurs in the aviary to have Sound of the Dinosaurs, which sadly dont work with the glitch.
3. ) We would need a "LOW securety" version for Lagoonviewing dome, Aviary viewing dome and viewing galleries without this view restricting "BARS" !!!
Bigger species could attack the Guest breaking the glass , which could be a nice animation ...lol