I like taller bikes. My trek is a 33 in stand over and for the most part my heels have to be off the ground 1/2 an inch or so. With shoes it a little better. I'm used to tall bikes
I checked my standover today with no shoes on. I stuck a pole between my legs and had someone measure how far up it went. It seems I'm a perfect 32 in.
So I guess to me the 56 cm(31.5 standover) would be perfect.
Thanks for telling me the photo was touched up lol. That blue would have been HOT. I ordered the black because I like the color white(if that sounds odd). I'm probably gonna change some things and add white components(white and black are a knock out combo in my opinion)