Men can choose to have their photos Blurred Until Matched, meaning their photos are blurred to all non-Matched users.
They will only be made Visible when the match has shown hers.
Women can choose to have their photos Blurred. These users can choose to reveal their photos to their match at their choosing. Only then will his photos be visible if they were previously Blurred.
If your account is configured in this way and you wish to show your photos to a Match, tap the
••• button top right of the Chat and then
Once unmatched or Blocked your photos return to being Blurred.