Padre wroteas for etching ... in some case a well done "perforated board" can do the job. In uni, that's what i asked my students to do , cause etching was out of the question
the nearby shops don't have good perforated boards, and the labs at uni are equipped with the ultraviolet machine and acid and what not to do the etching, so we encourage etching.
as for the quality of the photos, well they're frames from a video taken by God knows what cellphone cam
I'll ask them if they have better photos