LED TV mount support for VESA 200mm

This is my first design from scratch. It's made to support a 32" LED TV with VESA 200mm. It weights about 20lbs (the TV..) It's up to you if you want to use it, I'm not responsible for any fallen TVs ;). I had to cut it in 4 main pieces so it fits my printer bed of 200x200.

I tested it by applying a moderate DOWN pulling force on the TV while mounted and I didn't hear any weird sound so I'm pretty sure it's safe, or maybe almost sure. DON'T apply much horizontal pulling force, I'm pretty sur