First upload your own avatar to the QQ Dating Center, but it is best to find a photo with the head in the center of the photo when uploading it, because after setting it up, it will only capture the center part. Uploading requires Don’t be afraid if you pass the two-day review! As long as you upload your real profile photo, it should be fine.
After passing, open your personal settings, click Change next to your profile photo, and then click Local Upload. See the right In the box about QQ Dating in the lower corner, click to select, then click Set as custom avatar. That’s OK!