With a stipple you tend to start at a corner of a block and in therory you can meander around an entire quilt without stopping again until you get the next furthest point on the other side or in the other corner. That stipple looks lovely and even. You are making great progress.
The trickiest thing with stippling is not to get yourself stuck in a corner so a little planning is required here and there. Just stop and look ahead where you want to be and visualise how to get without crossing over but I always think what is a little corssover between quilters!!. Can be tricky but you will get the hang of it. Keep up the good work.