LEATHERWORKED: SPRING SLING

I bought the most marvelous leather hide over a year ago. Burnished to a beautiful hue - neither gold, nor bronze, nor pewter or platinum. But somehow a magical mix of all, straying to one hue or another in different lights and with various backgrounds. Magical perfection. And LARGE! So far I have made a clutch , sandals and this latest bag and I still have plenty left! I had been dreaming of making a supersized tote out of this leather. I even stalked my neighbour's RTW tote, whose design lines and seaming intrigued me no end. I borrowed it and took photo after photo of all the details. But I just couldn't figure out how I'd achieve all...