Originally posted by DeadJohn The composition is nice.
As mentioned above, additional clarity (or contrast) might improve the image.
I'll get nitpicky about the wall at the left border. It's a tiny bit off of vertical but noticable because it's so close to the perfectly straight border. Either skew/rotate while being careful not to break straight lines near other borders, or crop a little off the left edge.
I agree, the composition is very good but it could do will a very slight boost in colour and contrast (just a touch). I guess this is also partly and effect of the lighting - bars often look best with lower lighting levels which is how one normally sees them.
I don't think however that it needs to be skewed at all. I think the curve of the bar runs off of the curve you mention and helps balance. Also the table in the far background is level and would get tilted if the horizon level was changed.