I have a question about the timeframe of these challenges. I notice you mention CET (UTC+1) as the time zone calculation. I live in South Africa which is UTC +2. On Tuesday I posted my entry for the Landscapephotography challenge in the (South Africa) afternoon at 2018-01-30 14:18 (Steemdb recorded time) and your bot did not pick it up. I looked back in the history of that day and noticed that your bot only picked up the people's landscape entries 4 hours after I posted mine. What is the exact time frame for posting a specific day's challenge? Being only one hour difference from your publish time zone I would have thought it is well inside your bot's running time.