I'd love to try the day and am trying to make up my mind between sienna and sahara. Which one would you choose? Currently I have a city in plomb and rouille and a mogano part time. I am also considering a green day, possibly vert thyme. Would the sienna be too close to what I already have? Would the sahara be too hard to keep clean? I just use my bags, I don't baby them. Please help me decide!