Also, to me this illustration has a lot to say--it could be before the battle took place, meaning that both of them are scouting so to speak the location and are anxious about the battle. if it took place after the battle, then both of them have suffered great losses recently: Elrond loses his friend Earendil as well as Isildur, the latter to the call of the Ring. Thranduil witnessed the slaying of his father and became King of Mirkwood as well as a good majority of his people. He has to return home and explain to Legolas that his grandfather is dead.
Another example of how a picture can mean a thousand different things to different people.
Gorgeous, gorgeous, gorgeous Perfect balance of light and dark, and the detail is amazing - I like how you've taken your own stance on their outfits as well - I can see the influence of the movies, but you've also made it fresh