Yeah... "post modern art" is an interesting topic....
Of course! We can't improve without feedback
I will say though, entering into competitions can be frustrating. I have won best of show at a juried competition that I have entered many times and on other times that I entered the same show, I didn't get anything, where the best of show was to me pretty horrible. Once there was a picture of a dumpster (seriously) and the other was some concrete stairs under an overpass. It depends highly on the juror. Since this show was mixed with photography, woodworking, sculpture, painting, etc. there were a variety of jurors from a variety of disciplines. The year that I won best of show the juror was a photographer.
There have been some excellent works there as well that won best of show. One was a scratchboard piece that was simply amazing. You never feel bad when the one that wins is such a great piece.
I have also exhibited in shows where I didn't place, but I sold work and the work that placed didn't sell. So you never know what you are going to get in exhibitions.