I can see how this would relate to the yellow challenge, but it's a pity that the roadsign seems a bit blurred.
I do like the idea though. The yellow stands out against the white surrounding.
Although a bit blurred, this shot captures the theme -- the road sign, the line on the road and somthing else I can't see clearly on the left next to the smaller road sign.
A very nice winter scene. The yellow sign doesn't stand out like it should though.. It doesn't seem as sharp as it could be, and it would probably look better if it had some lighting.. Even a direct flash on it would probably make it pop.