I think the issue here is that good abstract photography, though the subjects may be unrecognizable, means something or is aesthetically pleasing to the viewer as well as the photographer. The feedback that you're getting here seems to be that, while this is a this is a technically well-captured photograph, it is not eliciting much of a response from your audience. To be fair, this is an extremely difficult thing to do, and there's nothing wrong with photography that is "just for you."