Please familiarize yourself with the instructions on changing your avatar from various devices:
Enter the profile menu on the left side of the game's main screen --> Tap the image to the left under your nickname and perform one of the suggested actions. Default avatars – you will be invited to select one of several proposed avatars. Take a photo – if the application requests access to the camera, press OK. You're all set – now you can take a photo in your standard photo application. Select a photo – if the application requests access to your gallery, press OK. Now you can choose any photograph from the gallery of your device.
Note that your avatar may be declined if it contains scenes unsuitable for 12+ content. If you cannot change your avatar for some reason, please contact support. We'll be sure to help you.