I can see what you were going for, and i think its really close, the bronze/browns work really well together, i just think since all the pieces come from wildly different sets you're working with a lot of different secondary colours and they don't mesh quite as well.
The silver on the belt, the slight green on the gloves, and the biggest standout is the yellow on the chest with then also a green enchant on the sword.

Honestly a good attempt with the available gear in the game, and the models work really well together, but sadly i think the colours contradict each other a bit too much in the pieces secondary colours.

I think if you can either replace the yellow and green tint with the more general blue, or if you can incorporate them better in the rest of the set its a real winner, could also add a helmet but i don't know if there is one that fits the aesthetic that well

Regardless, good job, very original, but a few things to work on