Tough question - I think it sounds terrific 
To be picky, the lead vocal is possibly a bit “back” in the mix (sounding a bit too “far away”). For a more “up front” sounds, you could try delaying the vocal reverb a little so that the listener hears the dry vocal slightly ahead of the reverb.
Soundcloud have terms and conditions relating to covers (http://help.soundcloud.com/customer/portal/articles/1480502-can-i-upload-cover-versions-of-my-favorite-songs-to-soundcloud-) but for original songs note that we now have an Audacity Soundcloud group and you are very welcome to post there. A bit of info about the group in this topic: Audacity group on Soundcloud [CLOSED])