Firstly, can I just suggest maybe putting clothes on the baby. It might get you in trouble the way it is.
Anyway, about the issue you're having...
You need to have a normal map, so make sure one exists in the first place. The reason the normal map wasn't working is because you don't have the correct settings under "BSLightingShaderProperty". The particular offending setting in this case is "Alpha" which should be set to "1.0000" not "0.0000". There are other settings that you might want to change too. Copy the settings from a mesh that you know is working, like a vanilla mesh, for instance. For future reference, whenever you're having problems with the appearance of a mesh, it's almost always caused by some setting in "BSLightingShaderProperty".
N.B. I had a look at the original fur-backpack mod and the normal maps aren't working on most of that either. So don't copy the settings from that.
That should at least sort that problem out. There are a few other problems I can see, too. But just see if you can get that to work and I'll go over the other stuff later if you want.