Not sure what to say really. But lets begin.
Good to see a tall skin, as you said not many around.
It looks very simple, which can be good, however to me it looks like you have squashed a normal skin into the top third and let the OBD stuff take over the other 66% (mixing my numbers to make sure people are reading carefully)
Be interesting to see some other screens, Navigation for example.
Also just had a sneak look at your install thread, that's a big screen.