If you’re looking to make an oil painting effect in Photoshop CS3, there are a few things you can do. First, create a new layer and name it “Oil Painting.” Next, select the brush tool and drag it to the top of the layer. Then, use the brush cursor to make a small line down the center of the line. This will be your starting point for your painting. Next, use the black brush to paint over the line you just created. You can also use other brushes to create different effects, but this is a good starting point. Once you’ve finished painting over the line, press OK and then save your file as an image.