Shed looks great! Is this your 5-year house, or your 30-year house? Reason I ask: having dealt with all three over the years, I'm seeing some potential failure points in the shed. They could be fine for years, or decades, but eventually one or more of these will be the first to go:
1.
Make sure there is no soil contact anywhere between the siding and the ground. Is that wood or a Hardie Board type product? Either way, it shouldn't touch the soil. It just looks a little close in the pictures, and sometimes dirt has a way of piling up on siding, then you get rot or other issues.
2.
Are you planning on gutters and downspouts? Sometimes rafter tails poop out first on a roof structure. It's the wood used, or the paint maintenance or the way the water runs down them from the roof, or a few too many xmas-light-hanging nails. But fixing rafter tail rot is a common repair job. I'd install a gutter. It'll help protect the tails, and without a gutter, you're going to get a drip line across your deck. Plus a gutter might catch some junk that will otherwise slide off the roof into your pool (it's not quite clear just how close the roof's edge is to the pool's edge). Roofing grit, dust, leaves, bird droppings, etc. The nails attaching a gutter to the tails can actually cause the very problem the gutter is meant to prevent, if not done properly. So there's that to watch out for, as well (it's a metal penetration into the end grain of a piece of wood, then subjected to water, so there needs to be care taken at that potential failure point, too).
3.
Those two 4x8s? They look great. But do they have any sort of cap or flashing over the top? The picture is not clear enough. I've had to fix mine. An upward-facing flat wood surface, exposed like that to sun and rain, will fail. Those two will go before the tails do. Paint will help, at first, but when it starts to crack and peel (from the sun) it'll just trap moisture and then you'll get rot. And fixing either of those, which look to be the primary load-bearing beams running straight through the shed, will not be fun. You could cut them back, so they're not exposed to the sun. Or you could fashion flashing over them and paint that. I'm not actually sure of the best fix for those, I just know they're going to fail eventually if they're wood and exposed.
Sorry for the downer report, but I'd want to hear it if it were my shed... Now's the time to address these, and your shed will outlast you!