It's been awhile since I did any watercolors, so I thought I'd give it a try. Watercolors are such a strange medium. First of all, you're allowed really no mistakes, or at least no major ones. And second, it's all a matter of calculation and then rapid painting... at least if you want some nice, flat colored areas. In other words, it's a very different way of doing art then the usual digital method. What I wouldn't give for save points (though I did a couple of intermediate scans so I'd have at least something if I messed up the picture).
Overall, it took me about four hours. I could have done it faster, but I messed up the first one and I didn't want to do the same for the second.