I wonder if there's a market for a kind of paid mentorship, for developers looking to improve their design.. A few emails a week and one or two face to face mee

I wonder if there's a market for a kind of paid mentorship, for developers looking to improve their design.. A few emails a week and one or two face to face meetings / Skype sessions ... "wow.. You really need to work on typography.. Let's look at these examples .. I'll send you some homework. Now let's talk about the color theory you went through this week.."