What dress code safe top would go best with this skirt?

It depends. What is your size and body shape are you petite med sized or large? If on the slim side a simple thin white sweater with a 3/4 sleeve (I am uming the print is green and white if it's cream than a cream sweater) or if you have a thick middle a nice wrap blouse again in the white or cream colour on the skirt and on the simple/plain side as the skirt is busy. hope that helps.