Do you guys think it would be okay if I made some using squiby.net? It's a website that allows you to assemble your own adoptables with three stages (0,1, and 2) and one of their rules is that the adoptable has to be your own design--but I see pokemon and okami and anime character adoptables all over the place and no one's stringing them up or anything.
This one here is a sort of "default deer" I made as an example. A standard stag, if you will. Obviously any common deer adoptables wouldn't have pictograms, but I think it would still be neat.

I obviously would gain no profit from this, I just was thinking that hey, Squiby has some deer adoptables--wouldn't it be fun to make some TEF adoptables for the community here?
I was thinking if people liked them I would stick to mostly just custom ones--adoptables designed for specific people's deer. The difference between these and usual requests is that you can watch your deer grow from a fawn into a stag as he/she gets "fed"(clicked on) and for customs I could even make the fawn resemble a younger version of the actual deer--basically the fawn could have the deer's mask and pelt if you wanted, but just a juvenile sort of version of it and such.
But I hesitate because these deer designs, technically, belong to the creators of TEF, and I definitely wouldn't want to offend them in any way--I really admire TEF and what they've done with it.
So do you guys think it would be okay? Like I said, I'm not looking to gain any sort of profit, I just thought it would be a really fun contribution to the community.