VANGOGHISH LANDSCAPE

I found a somewhat interesting image in a PhotoShop 3.0 book. It unfortunately used filters I didn't own. So, I eventually gave up on the book, and started playing with what I had on my own (the only way to learn, really).

I cut the canvas into two segments, green and blue (grass and sky, respectively). I put some curled lines of slightly variated colors across the green and blue fields, to add some variation, and added noise. I pixelated it a bit (or something to that effect). I did some radial distortion on it, and gave it a canvas texture.