Desorelia

It's been a while, and I thought I'd post some art again. I've been practicing with some new Paint.NET plugins and some other techniques.
But, here's the planet's specifics.

Desorelia:
It's main feature is its large ocean and small, rocky and arid landmasses. However, some regions of green exist, though mainly plains and small forests. The only lifeforms thus-far discovered have been insects, somewhat ten times the size of what you would see on earth; this has to do with the enormous amount of oxygen present on the planet. It's too much for humans to breathe directly, which is why we have to filter it if we're to survive on this planet.
The diameter of the planet is roughly twice that of the Earth, between 25.000 km and 27.500 km, and the skies are so clear, you can sometimes see outer-space through it.
Desorelia has no moons or other smaller satelites orbiting it, keeping the oceans in permanent equilibrium; it knows no tides and the oceans and seas are flat, so to speak. The planet also has extreme wather phenomenon; think tornadoes and hurricanes that make the ones during hurricane/tornado season on Earth seem like nothing.