I'm making an Ithorian (sculpting in Blender, plan to texture in substance painter). I'll make the head and some hands and feet, but no body. I'll also release these models for anyone who wants, so if you want an ithorian character in your fan film, you'll just need to put together some robes or a space suit and can use these parts sticking out.
Here is the head sculpt, based mostly on the Episode 1 Ithorian senators rather than Momaw Nadon. Seems like there is a lot of variation in the shapes of this species.