looks cool - not sure about the one up at the top though - it looks a bit too 'stuck on'
The other two look nice, but perhaps darken them a bit so they're more like silhouettes, and blur them slightly as they wouldn't be in prefect focus so much closer to the camera
Rest is looking nice - but i've just spotted one more problem
->The right hand vent is not as tall as the vent on the left
Res is nice