Glad you like it!

The grid was intentional since I enjoy having different textures at varying zoom levels and distances, since it also gives it a different feeling in the base resolution that wouldn't be there otherwise

Sometime it comes out more gridlike this way when it's more of an even composition but tis fine (^-^)

It really seems like it, I watched it a lot when I was younger, it must have influenced it.

Hm, not sure what counts as pixel art for you, but if you zoom in, you can see how I even antialliased the piece pixel by pixel! I have some lower resolution pieces if you want to see that too! I'd be happy if you checked them out!