Hello,
Welcome to my gig!
I will create pencil the person and some elements or background with little bit detail as some shadows and once this part is finished, I add some watercolors. The watercolor depends of the image, I always provide some ideas but if you really need something specific, I can do for you.
I would need a nice quality reference of the person and if you need some elements extra, I would need the references too.
Thanks.