It's common knowledge that these barrel textures aren't legal to use, like it or not. (I'm not sure if Homie's textures have the bright barrels or not) But if you got warned, and then ended up using them again after your warning, you deserve the ban.
The barrels, and making changes that are completely for an advantage are bannable. You need to use proper judgment (by basing it off the default version of the texture) to know when they are a huge advantage, and Jitspoe is pretty consistent about warning people to change their textures... soo if that's the reason I don't see any problems...