Hi Rayne, I like both of these ideas as they seem very functional. You have some great display areas as well as having room to keep babies in smaller bins and space to store other necessities.
You can tell that you put a lot of thought and time into your idea. I have a couple of suggestions you might want to use. First, if you are planning on using some kind of substrate in the display vivs you might want to install some kind of "bib" or "lip" at the bottom fronts of all of them to ensure the substrate will stay in the viv and not fall onto your floor.
Second, you might want to use some sort of PVC board such as
Versatex. This product is ammune to water and is very easy to use. Melamine is good but this is a little better product as it will last longer and have no issues with humidity/water whatsoever. It is made of recycled plastic and is non-porous. Again, these are just suggestions. I really like your design and would be more then happy to have one or two sitting in my living room displaying some of my own "personal choice" animals. One other question I have, what program did you use to design your idea? Once again, great job.
Jay