This gave me an idea of the droideka or whatever and just a unit idea in general. Have a unit that roles around in the shield bubble and lowers it when it attacks or something. Also instead of giving it a weapon, if you can control the radar dish, make it shoot rays out of the dish.
EDIT: The pic before your newest one, with immortal legs
What about a unit that can hack any mechanical unit or maybe make it a building like the queen's use to in brood war.
@SoulFilcher: Go
This gave me an idea of the droideka or whatever and just a unit idea in general. Have a unit that roles around in the shield bubble and lowers it when it attacks or something. Also instead of giving it a weapon, if you can control the radar dish, make it shoot rays out of the dish.
EDIT: The pic before your newest one, with immortal legs
Why not just look through deviant art and find some pictures you like and then draw a picture based off the style or theme they used?