Can you add some monster girls to game like nekomata (Cat Girls) and others, this's totally counts as furry but not fully zoophilia which is liked by a big fan base and it will be really awesome if you at least 1 monster girl specie to your cool game.

I would be good to have the option of painting the subject's claws/nails of any color and maybe some patterns

Once you've got a couple of coolers, a full tank of Specimen takes like, 8 minutes to process, and you can't be doing research during that time. I'm also not sure how it interacts with when you're actively "experimenting" on somebody.

That 8 minute gap in gameplay is kind of a bummer, and spoils the pacing. Just some way to upgrade the processing time would be great.

It would be pretty cool if there was an online multiplayer feature where you could play online with friends.

Different sliders for tongue length, width, height.

It would be nice if users could mod in fetishes that haven't been added for a reason or the other.

Sometimes when the iris is light-colored, you cannot see the color or shade of it well against an outer white background of the eye. A thin iris-to-sclera border could solve it.

Military themed uniforms, decorations, things of that variety, to give the option for a military testing vibe?

Pubic hair and under arms hair

You know how in the original game you were a disembodied prescence that just acted as a pair of hands? Well I'd like to see that again. Added as an extra mode, your characted is a sexless, ageless specieless sombody in a sealed hazmat suit. You can only use your hands and whatever tools you have access to and nobody you experiment on reacts to you as if you were a specific person.

This is for people who would like a slightly more proffessional working enviroment, or just want to focus on the person in the rack without anyone else taking up the spotlight.