The DIT's first radio

The chief designer's 11 year designer in training built her first radio. She selected the design and corrected a design flaw. She made her own variable capacitor too!
Here is the circuit:

Do you see the design flaw? (hint:the diode is backwards.)Here is here build:

You see the variable capacitor? From the looks of the station marks it is pulling in some signals!

She's already planning her next build. It will include a 2 transistor AF amp driving a speaker. The wood is to be replaced with some plastic.
Great job kiddo!!!