1.) yes so long as its not 6 people in one picture i will accept. I actually prefer either 1 or 2 per picture because its easiest.
2.) Yes i can draw children so its no issue.
3.) I try to but i actually work 2-3 people at a time. Like example Ill sketch out 3 commissions, then just get started on one, finish that, go to the next etc. So at least the next commissioners get something while they wait.