Thank you Torstan, that looks so remarkably different! Would you recommend redoing the rivers, or just to finish them before rotating the landmass. I opted to rotate the landmass by -45 degrees instead, as I think that will make it easier to draw the plateau that I am hoping to incorporate.

Thanks again Chick, they took me longer than I might like to admit! And that's really helpful! What do you mean by a slice though?