Horizon art

I have been learning about perspective in my art. I learn't to make things look bigger when they're close and things to look smaller when they're far away .I made the closest part of the river wide and the far end skinny. I learn't that the horizon line is the part of the river that meet's the mountains and I learn't to blend the colors together. Something that challenged me was using the big fat pastels when I was trying to do my the skinny end part of the river because I kept going over the line.