Make a circle selection of the mossy rock and use Distort>Spherize to make it look more like a planet. I also used Distort>Liquify>Pucker & Bloat to make the roundness look more realistic. Inner and outer glow with light blue.
Added goggles to the dog and distorted them to match the direction he was looking in. Transform>Distort. Painted a light blue into the lens of the goggles and changed the layer setting to Color so it looks like nice blue glass.