Here we have an else part for a while loop. The else part has its own scope and is drawn at the right hand side. Both, the loop and the else part, have a side comment and there is a good place for them. Leading comments also look natural to me. To emphasize the association between the loop and the else part the graphics has a dotted connection line. The else part scope badge has been moved into the header part because there is nothing to draw in the else part header and it seems look better this way.