Add me to the "people who like the tilt" camp. Luckily for you, but unfortunately for the busy-ness of the photo, that's not what hoity-toity urbanites would consider traffic. A solution for this problem might be a long exposure at night, if there's still enough traffic to load up the lanes with streaks.
You know, the tilt makes you look twice, but I think it would have maybe been a more effective photo if it was straight -- the lines would have really stood out.
its an interesting photo, Even though the freeway looks kind of busy, in CA this would be totally open so it doesn't say busy to me. The focus doesn't seem on to me although it might be my monitor. LIke the angle though, gives a good diagonal line.
7 - Well that's different. Undecided on the aspect/rotation. Like the idea though. The trucks add to a semi-vertigo type feeling. Criticism; slightly stronger colors perhaps, not sure. A different crop, especially to get the road/composition more 'balanced' may have made this better in my opinion. Good shot for the Challenge. Up to 7 from 6.