Instead of giving Saturnine useful feedback, I created the entire set of art assets for the game with some free resources online. It was quick and easy work, just a matter of cropping a picture and adding text in a sci-fi font. 
(Also, if anyone wants to see an example of the full set of art assets for a HG submission, check the link below. It was all cut out from the same picture, so you could could simply create or purchase a single picture, and cut out the parts that you need for each of the required art assets).