Hi naoned, your elf hero looks really great, I really like the colour scheme, it is very unusual and looks excellent, good harmony of colours. The light brownish/bone colour you have painted the robes, shield etc. is particularly good, very warm and rich, and pleasant to look at. The details you have painted look great, and the base is good too, it creates a good setting and atmosphere.
For criticisms, I think maybe the face is lacking some depth; it needs some small amounts of darker shading in the deepest recesses, and perhaps some more slight highlights. You should try to smooth out the layers when you do this as well, it looks just a little bit rough. And the metallics might be better with some sharper, brighter but very thin and small highlights to make the metal a bit brighter and more defined.
Great job, good luck in the competition!