Essentially the title says it all, I'm not a Buddist however I would like to pay my respects to Guan Gong known as the God of Warriors (although that's abit inaccurate) in the room I practice my Gung Fu. It's not used for anything else, so I wanted to put up some posters including one of Guan Gong (facing the door I believe or does that only go for shrines?).

Would this somehow be offensive?

Thanks.

Edit: I think I made a mistake, it should have been Taoism I believe, but the question remains the same for either.