HI -- The windows are fine for your mansard roof house . Just change the color of the shutters to a dark chocolate brown or a color a little lighter than the window frames and also paint the same color on the upper siding around the windows . It should be fine .

Beverly, your rendering looks fantastic! I've always wanted to paint or stucco the brick and now that I've done the windows, this may be the excuse I needed. I was getting really stressed out about my window color choice, but with your idea for house color, it really updates the look and curb appeal.

Good ............go for it.