Nice shots.
Although I don't use my phone for taking photos, it is amazing how good they have become.
here is a link to Andrew Marr, an Australian photographer on utube that I follow. He normally uses 35 and medium format cameras, but made a video where he uses his IPhone.
hope this link works. https://www.youtube.com/watch?v=Nbpr...&index=11&t=0s
The results are amazing.