Where do you get so much time, desire, and energy? Do you happen to have an entire team dedicated to creating NCF creatures?
This crocodile is just a recolored troglodyte from psatkha, but with a head from a Polish mod – you can do that in a few hours (there's still some model polishing and rewriting a huge number of text files to do). The praetorians and warrior gnomes were old projects that I thought about and reworked over several months. I also have some abandoned creatures in my stash, like a giant earth elemental and succubi in armor.
Actually, I keep 100 programmers and 200 graphic designers in slavery.