Broken Mirrors
The problem with a-tonal, lingering compositions is that on 1st listens, it doesnt make sense to the listener, and only with repeated listening does the mind begin to create recognizable patterns. I'm not suggesting that your song is a-tonal per se, but maybe it should be going in that direction a bit more?
Some might argue that youre just plonking away aimlessly at the keys, but because I'm open minded I can sense the direction youre going in, and the subconcious, dream like quality youre tryng to achieve.
Now, if youre serious about your endevours, don't be surprised if most people don't like the music you make, esp if it's a bit different than most of the popular genre's. Don't take it personally, and don't tell listeners that they have bad taste, it's way too subjective a comment( just like musical tastes hey? ), and won't get you anywhere.
My advice would be for you to embrace your unique musical perception, and dig a bit deeper. To me, it seems that youre just scrathing the surface of the subconcious refinery, from where all dreams and music flows freely. Remember that the listener wants some kind of reward when they listen to music, esp if you want them to listen to a song more than once. Some music grows on you ( discovery through sheer repetition ) and some music becomes stale over time, even though it sounded great the first time you heard it.
Listen to some Angelo Badalamenti, Nicolas Lens and Penderecki for inspiration, but keep on working and perfecting your own style/