Color's more accurate on dp1 also. But i love SD14 colors anyway, gives you a different perspective of things. I agree with Luis, i think it has something to do with the lens, trying with the sharper 70mm EX maybe?
EXCELLENT WORK AND VERY USEFUL . Your DP1 images look consistently better than your SD14 . However I have to point out that your SD14 images are under par for what I obtain and for other images that I see here at pbase.
Also is important to note that a Zoom lens will always produce less image quality than a Prime and particular of a Prime lens DESIGNED SPECIFICALLY for a camera.