The fact that some find this picture wrong and "racist" IS wrong and RACIST. Why not post all the pictures she posts of them having fun, riding horses, jumping into pools, skiing, travel around the world etc. Why? Not "racist" enough for you idiots?!
The way she instructed/forced them to smile, as if massaging her sweaty, callused feet after a long day's work is a fun family activity
The poor boy looking at the older girl for guidance, smiling a wan smile out of fear, wondering whether to ask her if they should try to escape back to Africa.