the rock in the corner distracts me a little in the first. maybe you can clone grass over it.
would love to see b/w
PS these are a lot cooler and more tasteful than most motorcycle shots I see.
Both are really nice photos. Like Laura said, these are much different than other photos titled "models on Harley". Thanks for sharing some details about your lighting.
I didn't notice the rock at first, but now that I know it's there, it is distracting. I also think the first photo would have had nicer contrast if there weren't a rock behind the front wheel, too (that might be harder to clone out). Next time, just pick up the rocks and toss them aside!
I dont know how anyone saw the rock in the first shot immediately. I was drawn to the curves of the ... female model. I had to go back and look for the rock. But yes, once pointed out it sticks out like a sore thumb.