Any thoughts on the fit?

I'm 179.5cm tall with a 81.5 inseam. Short legs and short arms.The bike is a Canyon Aeroad size S with a stock stem of 90 mm. I was in-between sizes and the calculator suggested a M. I first got a M, but it felt too long and I wanted more drop so I changed for a S.This bike feels better to me, lively and more comfortable. I see my pelvis is moving so I guess I could drop the seat a little. It's at 72cm, (40mm mark on the seatpost) I have also moved the seat forward around 15mm and tilted it slightly down. I can ride like this for several hours without any real strain or pain. So I guess it is ok? Or does it look too small?