Those small bumps and ridges on the edges of your CNC cuts are easily smoothed out with the primer. They recommend (and we do too) that we put the pieces under a fan for a couple of hours to drive out the moisture.
Then when the primer has cured it is time for the base colours. We always triple coat and use a top quality acrylic house paint. We allow it to dry between coats, most often with a fan blowing on the piece.
Stay tuned for more progress shots as the glazes go on.