The Guyver

 Bio Booster Armor.

Combat Zone - Corpo Troopers

 Troopers from em4 Miniatures, older miniatures that have found a new lease in life as part of their Combat Zone range.

The Terminator

 Sarah Connor?...

RX78-2

 My local comic shop had an open build day, where they gave away basic entry level Gundam kits. I decided to have a go at a rusted damaged look.

Alternative Armies Rebels

 Random space troopers.

Angel's of Fire Tactical Squad

 Another squad of Space Marines, made up of MK.2,3,4 and 5 armor marks.

Conan Bossonian Militia

 I managed to get through a truck load of town guards that came supplied with the Conan board game. Though I tried to use Army Painter Speed paints on these. I ended up going back to regular paints.