Only thing I'd mention is that you've shaded the heraldry on the shield for the angle it's being held at - the original heraldry should either be flat colours or if painted in an illusion of three-dimensionality the angle of the lighting would be as if the shield were held upright.
Andreu,
Really nice painting, both the figure and the shield. sorry but Einion is right about the shading of the heraldic on the shield.
Further, i wish i could paint heraldic like you did.
Extremely well done.
Dear Andreu
very nice work.I would disagree about the shield.If one decide to paint a flat design then in my opinion it should be shaded accordingly to the position of the shield.This can be osserved on some of Diego Ruina work on is web site.
Roberto