Not really too convinced, I think you need to develop the idea into something a bit more than what you've got at the moment. While I'm a great fan of keeping things simple with designs, I think dosxuk's mock above gives a fantastic idea at what you should perhaps be aiming for - perhaps try recreating something similar?
To develop your idea, I'd perhaps look at adding some sort of background image or pattern - pick a simple one though so that you can still clearly see the 'BBC Scotland' text. I'd also have a look at the positioning of the channel details and avoid having text too close around the outside of the screen.
Don't be too disheartened by some of the feedback, just take on some of the advice that's been given and I'm sure you will be able to improve this quite considerably
At the moment, unfortunately, it looks more like a PowerPoint slide rather than something that would be on a national television channel and as a result - 1/5 for now.
2) When does half term end?
I personally don't think that age has anything to do with ability - something a 15-year-old could produce is sometimes easily better than something a 40-year-old could produce and don't really feel that this type of comment really contributes anything.