I think it’s a great Render. I would just brighten it a little with postwork, or up the ambient lighting a tad.
I agree, it’s a really nice scene. I’d suggest you make the beer more golden, unless it’s for St. Patrick’s Day. Also, outdoor scenes should have sharper shadows. For outdoor scenes, I’ve been using one raytraced distant light with shadows, and dialed the shadow softness to about 1% or 1.5%. The lighting looks good, but the shadow isn’t distinct enough, especially for such a cloudless sky. If you’re good at postwork, you can paint in a shadow. I’m not that good at it.