I competly understand and agree with what you mean. And so what if you are better at portraits than other things (even though you are also really good at those other things)? Going back to what you're best at might give you a confidence burst, a gestural exercise, a relief and all that jazz. Get out of your confort zone, sure, but first, make sure you HAVE a confort zone so everything else you make can measure up to it's standards.
Anyway i love this one, especially the contrast between the pink and white hair.