Technique challenge: high key

So here's my attempt for the high-key shot of this week's technique challenge. My wife went to cinema and to dine with friends. Meanwhile I took A out. He took a nap in a pushchair. On our way home we passed an accident site. Two cars had crashed (the other one behind the corner). There was a police car, an ambulance and a tow truck present. The front of another of the cars was quite damaged but I suppose no one was severely injured. The speed has probably been quite low.