Great for a test
-Gets right into it with a vocal that just seems to fit the style of your music. Almost all of it is incredibly up beat and relatively fast, so that fits nicely. It then cuts into a nice fast synth with a higher pitched one doing melody. Works pretty well, but it seems to be a bit empty or bare. Couldn't tell you for the life of me what to put in there, though, sorry :p
-That fadeout has to go or be revised, in my opinion. It just doesn't... flow. Once again, being relatively unskilled at making music, I couldn't tell you what to do with it, but it needs a change. The remainder of the body plays out well enough, but could use a little alternate melody thrown in there for a bit to break up the monotony.
-That fadeout shutdown ending makes it loop perfectly (big plus), but it sounds a tiny bit rushed. Give it a bit more time and it should be alright.