Sidewalks

Nice tune.  I like how the song is put together.  I thought everything sounded pretty damn good.
Even though it sounds clean, everything kinda of sounds up front to me.
Like its all coming down the center.
I would make 2 mono clarinet tracks and pan them wide and see how it sounds to create some space. Just an idea.
I'm not great at mixing so I can't offer much advice.  Creating a really spacious mix is something I've yet to achieve.
But at the end of the day it is YOUR song, so if you like it that way, that's all that matters!
Cheers!

OK - I made two mono tracks of clarinet and panned them hard left and right.  I put more reverb on both and also turned up the guitar and piano tracks.  The new mix is here:
 
https://soundcloud.com/ta.../sidewalks-2-10-2014-b

Try thinking of your mix as if you were listening to this as a live performance and you are in the front row with the musicians to the left and right of you, a bit of panning would definitely help separate the instruments. Maybe EQ things a little differently to give them their own space. The drums were a little soft and mechanical, it's difficult to get great drums. I think it would help give the song some drive if you could improve the drum track. Make the clarinet sound more up front, as this is the melody, a bit more volume and/or compression might do the trick.

nice instrumental music .. pleasant and relaxing to listen to.. 

Very nice number, arrangement,  and performance.  I agree with some of the above comments about the drums but as one who uses acoustic loops I am very familiar with trying to get the perfect drum sound.  Great separation on the instruments!