I think it's what's left out that appeals to me in your art. Although things aren't straight in nature, the straight(ish) lines of things like the river or the sun appeal to me for reasons I can't describe. Maybe it's like a story. I've heard it said that a good author doesn't tell a reader what something is like, they show them. Maybe it's similar here for me. Showing too much would have been telling the viewer, and instead the minimalist aspects help show me.
Again I'm no professional art critic, but I genuinely enjoy seeing your drawings and these pieces especially.