You can set your profile photo from Facebook, or Google+ to be your default Sync.ME Profile photo.
1. Go to "Settings" tab, and open your profile
2. Tap the social network you want to sync the photo with.
3. Choose "Set as Profile Photo".
This will link your social network profile photo to be your Sync.ME profile photo. If you have it set to your Facebook photo, then once you change your Facebook profile photo, the photo will also change in your Sync.ME profile.