Linen popover with rolled sleeves?
Can't see you in polo, but unless you're Get Smart I dunno how you wear a short sleeve shirt
That white polo isn't great on you, NN. Looks really cheap. Try a loose/boxy fit short sleeve button up shirt. Would look nice with the pants you have on there. If you can't find any you can just chop the sleeves off a baggy button shirt and roll the sleeves half up your bicep. I used to do that, was nice in the summer. Have to make sure the sleeves are loose though, tight sleeves when it is hot and humid out are horrible.