I think this is a great wip, other than the objects positioning, I think this scene lacks shadows, probably because you used soft shadows. If you really want this scene to be the best possible, you need raytraced shadows ( about 75% only if you use GI, which I think is the case)with some softness (4% should look good, since you don't have a 100% black shadows). It will take a lot longer to render, and you'll need strong AA settings. I like the blue summer sky, but the clouds look stretched and unnatural, imho. Now about the bumpmap, I'm afraid you'll need to get to the function editor to correct that. If you change the color channel mapping mode, and if your bumpmap is a greyscale bitmap that matches your color channel, you'll need to change the bumpmap mapping mode in the function editor. It's very easy to do: in the advanced mat editor, control click the bump function, you land in the function editor, there you only need to click the output node right above your bitmap, and change the projection.