It's not bad compared to previous mocks. What's with the black bars?
It's because when taking a screen shot it takes a photo os the entire screen, black bars and all!
So it's done in Powerpoint.
No, it's done on a programme that one of my clients has built, It pretty much takes a screenshot of the design that you've created they are still working on it which is why it's not yet been put out for all to download and use!
I call shenanigans. Nearly EVERY professional design package has the option to export an image no matter what stage you are at. The fact a 16:9 image is being displayed in a 16:10 frame suggests it is a powerpoint mock that has been screen printed by yourself.
EDIT: Better offer some advice anyway, the OSG need to be resized, they're far too big for HD TV and SD TV come to that, I just loaded one of your images in a full screen browser window on my HDTV at 1080p (I had to stretch it somewhat) and stood about 7 feet away, they were too big. I think if they were reduced in size they'd look much better.
Oh it's such a perfect day, I'm glad I spent it with you...