Will you please do a write up on my favourite designer... Paul Smith

I am going to a wedding in Phoenix. Thinking of wearing white pants, navy blazer and brown & white shoes. I can't decide if I should wear a white shirt which is the "safe play" or if I could wear a pink shirt with white collar. What do you think?

I am looking for a casual sneaker and I can't decide between these two Ellesse Alchemy's and this pair of Fila Rossi Perf's