Interesting thread. I haven't seen this one for some reason, so I figured I'd jump in here...
I have a somewhat minor character in my book that I intend on turning into a rather major character, and possibly changing it to his POV. I've worked out his backstory and I absolutely love him, but to be honest, I'm scared to write any of it because in my mind, it's perfect, and I know I could never do his character justice with my writing.
But I shall soldier on and hopefully come up with something that works. I've applied for a grant so I can take a month off work and finish the book, so I'm waiting to hear on it. I work seven days a week and between that and taking care of the house (and other assorted issues) I never seem to be able to devote a good chunk of time to the writing.
That's what is on my mind about my writing today... <sigh>