Board and Batten dilemma

Ok... So, here is a post I have been dragging my feet on -

 Sorry...it's a half bath and hard to get good pics of -

and here is the reason I have been dragging feet...

I - being a girl, and a Gemini girl at that, I am very fickle!  (Nooo???  You say sarcastically.  Yes, I heard that!  And I know who you are!)   Anyway...back to my dilemma.  In the middle of this project I decided to change from grey paint to beige on top of the board and baten.  Welp,  now I wish I had gone with the grey!  Actually there was blue in there somewhere too. But hey - I told you I was fickle!  The tile/grout (which I neglected to take a picture of) is mostly grey.  And, I'm getting a little beiged out...if you have seen my house "you know why" (one of the best one liners in a movie).  So...the reason I have not posted this sooner, and the reason I am posting now, is...I would like some opinions.  I am thinking about having the mirror and vanity cabinet sprayed white and the walls painted in grey.  I have a collection of small mirrors with silver and black frames which I thought might then look nice on the wall.  Any advice?  WAIT...I almost forgot!  The second part of my dilemma is, I feel the Board and Batten look unfinished.  Do you think it need a shelf or cap on the top?