Any idea why the bridge is curved in pano pic and not in normal hdr pic and what is with the super blue sky.

That is how panorama's work.
The perspective they have to squeeze together makes straight lines curve.
Some programs allow you to change that, but that does not always give a nice output either.

Perfectly normal - good shots too

Wow! Amazing shot!

Nice shots.

Hi, thanks for the inquiry. What you've captured in Panorama mode is perfectly normal and you have no need to worry. Anyway, nice shot. Thanks for sharing.