Personally I think you need to work on the structure of your pieces, they could be fitted together more professionally when you want different angles and such. Keep the good rendering up though

well now see, as i look at those, i see them as minimalistic pieces, but your renders just don't aloow that, so i'm like stuck between weather it should be a minimalistic piece or should you go all out and do alot of crzy hi-tech stuff with it