Great job. The color is acceptable, I always aim for something acceptable since in my opinion the job of paint is to either seal what you are painting, cover stains from the last party, make the lady happy, or just get the can empty so you can have a paint can to roll around the yard using your shotgun and slugs.
Small it may be, but paid for means so much more.
And it is easy to extend and expand from there.
Heck, in a decade you might build a bigger cabin and then you can have a guest cabin for those who annoy you more than others when they visit.
And looking at your pics, the quad and guns and what not, I am happy to see you consider the cabin to be more for sleeping while the outdoors is for awake time.