Egregoros

"as long as they need to"
Lol but it's fairly true; I end up fretting and sketching and whatever I need to for far longer than I need, but then I usually just sit and paint until it's done. Sometimes I take breaks to chat on fedi, eat, etc of course, but I don't keep great track of time. The bigger ones tend to take longer, and there are times when I have to wait until a layer is dry (which may take weeks) before I can work in it again, but there are always exceptions