Shadow on concrete

The weekly challenge is to take a photo using a mobile.  Not up my alley at all!  I had to learn how to use the camera on my mobile yesterday (I tried it when I first got the phone a few months ago and had forgotten how) and had fun playing with it, but I'd never switch from my big camera!  Not happy with this shot but I'm posting it anyway because I don't know if I'll get anything better before the end of the week.  Will keep trying - because this really is a challenge!