When I paint, I prefer to have a blend of tight and loose in the same painting. But "tight" does not necessarily mean "realistic" as sometimes the tighter I get the more abstract I am. It is usually the looser paintings that are the more realistic...but strict realism is not my thing anymore, as all of my art is abstracted. I used to strive for exact realism but got bored with the whole idea of depicting a reality just like it appears. But painting a tight abstraction can be tedious and boring as well...thus I prefer the blend of the two.
My walls are just a jumble of my own completed artwork, works in progress and blank canvases...with no regard for proper hanging or placement, hanging merely on drywall screws screwed into the walls.