I've started a big enterprise when I decided to sketch these two open clusters: during the long process of drawing I've restarted from scratch once and decided to abandon at least 3 times. NGC 1807 was the easier case: a handful of bright 9-11m stars give the most of the cluster, which has a figure in the middle of the field theat resembles me of a flying kite. The really hard case is the NGC 1817, seen on the right side of the image. It also has brighter stars, however its real image is shaped by the many stars fainter than 12-13 magnitudes. During sketching many stars emerged by using averted vision which made it even harder, especially when after sketching a couple of dots on paper, and turning back to the eyepiece one tries to pick up the line. On the other hand this double-cluster is a beautiful and easy target, that should be observed with lower magnifications.