A Cow model for a 3d printer

I just discovered all this big thing of 3d print, Im so excited about the idea!
I have no printer yet, but did this model some time ago and I hope somebody print it and I can see the photos of the real thing!

Im not sure the model is printable, tell me what i got to have in mind to make it compatible if is not.

Thanks so much.


(*) English is not my mother language, excuse if I'm not easy to understand.