I feel like this would be easier to read and interpret if the land were darker colored. The yellow and the land colors blend together when some solo hexagons are present.
You're alright! Hindsight is 20/20 I am a backend dev not a visual designer either. It was straightforward for me to notice on my monitor that I'm used to etc but that doesn't mean on your monitor it looked the same. Just thought I'd share some feedback!
