Lol, another Reason producer. Love seeing others in the program, it can feel lonely surrounded by all these FL people. This musics reminds me of the house we'd get here back during the introduction of the audio portal. It's a romantic sound and I'm loving it. I'm gonna nit pick the mix down a little because it's what I do :p
Track could hit harder, it looks like the master out is being over compressed somehow (the visual shows the wave is cutting out well before peaking). Usually over compression leads to loudness but this kind of compression just leads to limiting your audio field, less room for sounds to exist in. You're basically masking 5 to 10% of your canvas with negative space.
Check the master out, Reason used to have a default "Mastering Suit Contaminator" which would set up the final out signal with certain fidelity settings. The maximizer in the combinator had a button called the "limiter," turn that shit off or bypass the unit entirely. I've always preferred the mclass compressor over the limiter, simpler UI. If you don't know what I'm talking about, it might not even be there. I have a lot of files going back to Reason 4, I think the default Mastering Suit was tossed to the side in older versions but you can still program one. In anycase, set up the final signal going out with a few fidelity units on the way to the amp. I always have an equalizer and compressor on that final signal for mastering.
Feel free to hit me up in the future for any fidelity talk, Reason has great tools to get the most out of your sound systems. Just gotta know what your option are :D