So one of my friends wanted to know how to do grass
I'm not very good at it but I will share my way
IceCreamSuicide
Hope this helps
I whipped up a quick background for this, don't judge me
Now the first thing to remember is that because the earth is round, the horizon is gonna be curved
So draw a curved hunk of green
Then I go in with a dark blue-green color and airbrush the bottom
Then I use the color picker and grab the middle ground color