Painting- Using An Artist's Knife In Acrylics

When doing painting on a canvas, a lot of texture is envolved in creating an image with the paint. Most painters you see use brushes, but recently I have decided to try out a diffent way, using a tool called an artist knife. The orgin of its name escapes me, it seems more like a thin spatula or a small cement scraper when it comes down to it, but I found it to be a remarkable little tool in creating a wavy sort of texture with the paint. 

As it was my first painting and attempt to use a knife, I kept it simple. I did a sky and a black and gray hilly landscape using the knife, (which I found tends to use more paint) then added the tree, girl, and the lights with a brush.