i think it is perfect the way it is. solo percussion is the way to go. you dont need to fill it up with a bunch of other crap to make it sound good. in my opinion by having more then one instrument is just another reason of trying to make up for something the first intrument couldnt handle. piano i beleieve us the only real instrument that can express so many emotions so easily and fluently. you did a great job on this piece keep up the good work!! try to make one a bit longer too! hope to hear more from you.
I like the piano and the realy high piano that you snuck in there lol. This would be nice with maybe a bass or a few little percussion sounds here and there. I am not a big fan of solo percussion. You music is great for melodies and you should keep that up.
Please contact me if you would like to use this in a project. We can discuss the details.