I really love this fanart. I love how determined he looks and the way he goes straight towards the viewer. He definitely looks like someone who can step right through a crowdy place and every person would go out of his way.Besides the great facial expression itself your use of colours and contrasts contributes to the overall atmosphere very well and the texture is very decent and fitting.I also love the details of his clothes and armoury; it looks accurate and impressive.The only thing coming to my mind that I could criticise is the following:Since Ephraim is slightly tilting his head forwards, the distance between the eyes and nosetip should be a bit shorter than you drew; I think the perspective is not completely accurate in your picture this way.That's only a minor mistake, though, and I think it lessens the intensity of his look only slightly. To me this is one of the best FE fanarts I've ever seen - and I've seen quite a few!