Hello! I'm having the game art for Skyros Isles updated and I'd like to know if Anduine, a warrior, should have a grey or purple shirt. Please let me know!

I think purple color stands out more if you want the character to pop out, though if you want the char to expose the warrior part more, second color will blend better with the rest of the clothing. So it depends on what you believe should be accented out on the character. 

I agree with CurioShade. The purple looks nice and stands out - judging by your Avatar - you agree with us too :-). 

I prefer purple to make her stand out from other characters.

I think both of the sprites are really good, but both communicate something different. I feel like the one on the right is great for a simple npc character and really conveys the style of a warrior, while the one on the left makes her pop out way more, making it known that she is somebody important. While I think I'd rather go with the one on the right, maybe you could add something into her attire to make her stand out a bit more. Perhaps the same purple but on a smaller part of the uniform? Maybe the shoulder pad?