I'm honestly not surprised both entries were of Twinrova, since she's probably the easiest of the bosses to draw XD
Anyways...let's see...
Random Person: You're just getting better and better every week! Really clever doing a reflection instead of head on, and it's very good that you acknowledged the fact that Twinrova's image should be mirrored in the shield. For the sake of nitpicky details though, you failed to mirror the gem and belt colors, but still, very good reflection. Nice shading effect too. Only other suggestion is that next time, when drawing fire, try not to use lineart. Fire is dynamic and looks much better if the effect is achieved with color alone.
Hylian Pants: I love your shading, seriously, love it. Great anatomy, beautiful fire and ice, very nice mist effect, I'm sure you get the idea XD Some constructive criticism though, given that it's a boss battle I think a bit more...action may have been more appropriate, you know, more dynamic, especially in the face. Also, and this is just me being really nitpicky about details, but I feel like a lot of details were lost on Link's hand, and I'm pretty sure Link's sheath is slung over his left shoulder rather than his right. Nitpicky I know, but missing little details like that make it kinda hard to figure out how to interpret Link's pose.
Who to vote for...who to vote for...? RP's is really creative but HP has better execution... Um...can I not vote and say I voted for you both? ^_^;
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and RP, I seriously love your concept! I actually had some trouble with the contest in the sense that it was hard to figure out how to pose the characters in an interesting way that hadn't already been done to death. You nailed it 
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