1.That looks awesome
2.for the eyes is the material/shader issue you need to check if the eye texture name is the same as in the material including dots,etc. or maybe the only problem is the texture has a wrong format it can be CMRP or CI8 or RGBA5,etc until right texture appears, or size isnt 8,16,32,64,128,258,512 etc.
3. Problem Stills or what i put above you tried it or its the same. try taking a pic of the texture files and the material and shader from BB, i had the same problem on bowser so maybe i can help you
