These were fired at cone 04 using Spectrum glazes. Both were glazed using the same brushing technique. The one on the left has 4 coats, on the right three coats. The high spots on the throwing rings and the edges of contours are more visible when the glaze is thinner.
Hobbyists and increasing numbers of potters use commercial paint-on glazes. It's convenient, there are lots of visual effects. There are also issues compared to dipping glazes. You can also make your own.