Paint and new wall decor? More? Less? Which items do you want to keep?

I would paint the panels and the bar in a different light color.

And what about the "dutch bike barstools?

I suggest picking out a dozen photos from this search: https://www.houzz.com/photos/rustic-home-bar-ideas-phbr1-bp~t_12302~s_2111

That will give you a clear idea of the direction you want to head. Picking some fabulous new lighting or some great new bar stools can also be inspiration.

Fake aged barnwood has no bugs in it. Real barnwood has to be treated to kill insects and fungus first The old lead paint has to be removed. There's wallpaper that is made to look like old barnwood. Lightweight, easy to apply, easy to change.