I can definitely see this one being used as a stock photo

I really like this one has a lovely feeling to it.

Could be a good PS source, a more close up would be nice

The one thing that bothers me here is the horizon. The whole picture needs to be tilted to the right but it's such a pretty scene

I don't think the horizon is big of a deal, cause you may want to just want to use the bridge, or the grass in the distance. Personally though the bridge is a little too simple for me to use as a stock. But that's just me.

I like this image; it's sharp (enough), nice different textures and not too bright or dark. Good luck!

Great shot