We like #35 a lot. I love your beautiful S. Africa, but In Colorado we have snow on our mountains most of the year 'round - maybe you could give us some snow capped peaks? And our rivers don't flow into that great ocean in the west. We are a "headwater state" and our rivers provide water to some of the drier states to the south, eventually crossing the border into Mexico. So...I guess the sun should be in the west with the river heading south. Your work has a nice feel to it and your colors are great.
Nice! You're fast. The group is debating the color of the mountains, but I think you have a great sense of color. If you want to throw in some greener mountains, give it a shot. By the way, our new tag line is "advocates for our rivers" but that does not need to be in the design.
Yes with the technology it is today it should print fine in fact you are seeing it at its worst size and resolution now. If you had to print it even smaller on a business card it would be crisp and sharp remember we are only allowed to design vector based art which means it retains its sharpness no matter the size