I would def agree with the crop – maybe even remove a little more sky in the first one to balance it out. It is a nice picture though. The only draw back I can se is that there doesn’t seem to be detail in the trees on the right hand side – maybe if you feel up to it in photoshop you could lighten them if you took it in raw
As for the second one – I maybe wrong but I think I would try straightening it to make the bridge level – I know the falls on the left would not be as horizontal then but I think it might look more natural.
Also it looks a little soft esp. the boat in the water?