go to moss they have at the moment pierre cardin shirts and light colour pink, light mauve and blue including white.
they are long sleeves double cuffs.ask for advice and bring your jacket with you.
Daniel hetcher , ventuno [close-fit shirts] this season collection look stunning with greys.
have a strong color for your tie. this will bring out the all ensemble.
try dehavilland plain silk satin ties in burgundy or red or a strong blue?
Do not forget a lovely belt and your cuff links to match you will look the part.