The middle row of shields would make great average-sized shields, but I don't think they would work as whole-body shields, unlike the ones in the bottom row, which could be made and outfitted onto an army, who could then use them in formation for Roman-style warfare. The top two make better escutcheons, in my opinion, since their designs might make them a bit unwieldy for anything bigger.
This reminds me so much of some of the Final Fantasy 10 shields! I really do love your designs though. They remind me so much of Final Fantasy stuff, but they are totally different. And it feels like there isn't enough Final Fantasy stuff even though there are like over 15 games. XD
your use of light is really cool.. maybe use more textures though? the brown one looks like it should be wood but it looks metallic (maybe its supposed to be....) the gold is very realistic though... too cool!
I wouldn't want anyone else's talent because I like my own, but boy o boy if I didn't have my own style, I would want yours. Very awesome styles! I like the bows too. And hey, you never know, some of them COULD be functional.