not a lot you can do with the first one, the sky is overexposed and looks shit, and without the RAW file it can't be brought back. you could fill in a better sky on another layer behind it which might improve it a bit. needs levelling too. a vignette might go well on it.
the second one has distracting posts in the foreground that need cropping or cloning out and i don't like the way the wheels are up on the grass or the way the glass looks without having used a polarising filter when the pic was taken.
but imo neither of them are particularly good, sharp pictures and not worth the time and effort to do anything with. sorry.