I thought the accent colors were pretty as-is, all lined up in the inspiration photo, so I used it on the card like that.
In retrospect, heat embossing with white powder would have made it a whiter white (as well as a crisper image, probably), as opposed to using white chalk ink. The stamp for the frame is this one from Prima Marketing, that I masked in certain places while stamping to get a longer frame. The "thank you" stamp is from a BasicGrey set (Crumpets).