Greece + GF1 + m9-18mm

Just came back from a couple of weeks in Greece. Had an awesome time and picked up the Oly m9-18mm the day before I flew. Ive never had an ultra wide before so it was a totally new experience to me.
I found it to hold up very well, and a great little package.

Im keen to hear opinions on whether my pics have soft corners or too much CA, because I heard someone had a dud lens, and Im no expert on that sort of thing.
I had a B&W 52mm slim UV filter on the whole time aswell.
Some contrast, colour and sharpening has been dont to these jpegs.
Thanking you in advance.