Partially, yeah. It also depends on the amount of detail you want to put into it, so you'd have to be more careful where you put the paint strokes - and to give you time to sleep, too.

That's not long compared to my usual style, though. The techniques are different, and it takes a lot of time and concentration to get it right. Those can take weeks to finish up the way you want it, but it's always worth it in the end.