Sounds like house all right. ;) It's a catchy and fun piece, and the risers are cool. I think some of the synths are a little generic, especially the lead, but you're right about one thing: your mixing has improved a lot. The only thing that stuck out to me is you might want to take a tad bit of treble off of the lead - it was just a little grating in the higher register. Besides that, I think you could've used some more creative transitions and variety in the composition. The entire piece is essentially a series of variations on the same riff, and the second half of the piece doesn't really add much more new content. I'd encourage you to try to mimic the structure of your favorite tracks to see if you can give the piece a little more shape (calm moments with less texture, dramatic emotional heights, and everything in between). Overall, though, you're definitely on the right track. Keep at it, man! ^^