Seems like you did a great job putting the model in, but the texture is missing. With Bully textures are done a little differently... they aren't actually put in the nif files (Or I think they are but, well the ones that get used are in NFT).
In the nft files are the textures that you should edit if you want them to show up for your model. Should be the same name as the nif file you edited except with the nft extension.
Good luck bud. I never seen that character before either... is that from a game?