But also, you may want to get rid of some mines on the tiles. It allows greater freedom of movement and mines look very bland when they're put on tiles.

Someone link atob's guide to map theory and function. I cba to do it now. But in all, that guide will give you a few pointers to increasing aesthetic value and gameplay without sacrificing difficulty.

just kidding ;)
you have a demo ?

but the gauss are was very good, even if it was quite hard