I'll have to look at those at home, my parent's computer screen is too dark.
But thank you for having a look, I'm eager to see what they look like on a good screen!
As for the reason mine was larger. It's because that's as small as I could get it before it looked like utter and total crap. In fact I still think my end result looks pretty crappy, I had one that looked a tad bit better, but forgot to include it.
Anyhow, if you could possibly shrink down one of the other models to fit within the specs I mentioned, I'll REALLY be impressed! I always ended up with a bunch of blocks that hardly resembled the original model.
On that note, I may have to take smaller screen shots of the models to begin with. That has helped in the past, but again, zooming out the model results in less detail.