#6 seems to harken back to a 70s space ship. #3 and #4 have colors that look very 80s, but #4 looks more sci fi. Not seeing any 70s or 80s sci fi theme in #1. Just looks like an abstract design to me.
This is the second tank in the series of vehicles that I am doing to beef up my portfolio, hope ya like it... and now a bit of exciting education! The MBT-70 was a joint US-German heavy tank project that was launched in the 1960s and formed the source vehicle for both the Abrams M1 and Leopard 2 main battle tanks. The…