If it were in my house I'd have it with the bolt open/clip in just because I think that displays more of the history and story of the firearm. I'd hang up any other accessories next to it. I think with the bolt closed the firearm looks more like just another decoration on the wall. It does LOOK better, but I don't think it's doing the firearm any justice. Would be like hanging a Mosin on the wall without the bayonet on it. Having the "unclean" lines of the bolt open and clip in draw the eye abruptly to it and made it much more of a noticeable and memorable piece rather than just something else on the wall. I won't vote because OP wants us to vote totally on the aesthetics, so I'll let him interpret my opinion towards whichever option best suits his question.
Example, should I hang my Mosin on the wall, I'd hang it with the bolt exposed, stripper in, bayonet on, strap on, with the cleaning kit, ammo pouches, and bolt cloth right next to it. Because it's such a ubiquitous firearm and historical piece, it almost needs to have all the issued accessories with ti.