Personally, I'd take it with a pinch of salt.
I remember being a child and entering something similar - I was overjoyed with what I'd drawn, and I remember the winner being announced (honestly, it was shit not as good but happened to be a child of one of the 'in' families - I went to a very cliquey catholic school).
I was just gutted and wanted to get out.
I'm not saying that's what's happened here (or even that my original outburst was acceptable) but it didn't have anything to do with my mum...