I don't really know what "perfect" is even supposed to be, but it certainly doesn't exist anywhere within my purview. Far as I'm concerned, it's our imperfections that really make us who we are.
My two cents on that subject aside, this is a really cool, totally chill journey. I'm glad that you decided to share it with us, hereabouts. Really enjoyed the musical ride, so thank ya kindly.
I don't really have any problems with the length of the track, but I would suggest snipping off all that dead air in like the last thirty seconds or so. I personally try to consider each track as it would exist within a larger whole, so - in this case - as it would pertain to a full album. You'd never want so much silence between one track and the next.
Simply getting rid of all that extra silence just might get you a little bit closer to perfection. Whatever that is. :D Keep doing what you do, man! And keep being you.