English: A simple view from the seventh exoplanet orbiting the star TRAPPIST-1. Five other exoplanets are visible as pricks of light in the sky.

Update: I added some sundogs generated by Les Cowley's and Michael Shroeder's HaloSim, which actually allows me to not only set the diameter of the star, but also the focal length of the lens for a fairly accurate representation. I did have to shrink the halo slightly to get the sundogs to fit in the frame comfortably. The other alternative would have been to expand the edges of the landscape, which I didn't feel like doing.

One tip I can offer to anyone wanting to use HaloSim themselves is to generate several images with a lower ray count and then create an averaged/mean stack of them rather than one image with a tremendous ray count. I ran it overnight with a number of rays I knew my computer would never finish by the time I woke up and noted the image was blown out rather than nice and smooth. So a stack of several simulations provides a smoother result, even though it requires more human interaction.