>>4466486Turn down the spacing on your brush as close to zero and you can. The ridges on the long edges of your strokes are because the spacing is too high. If you can't make it any lower, paint on a larger canvas.
See if your program has an option to add texture to brushes. Texture can turn an okay brush into a great one. Also try experimenting with adding a small bit of random rotation or size changes. Finally, download some brushes that you like and study their settings.
