Intriguing design (Troja, anyone?), but the part you focused on doesn't make this look like a sword. :V
Showing the whole thing wouldn't work, either, since that would make the sword too small.
I think you can improve this by applying some stronger shading on the blade, plus an eventual change of colour to make the blade actually distinguishable.
I know that the whole thing's probably meant to be made from one and the same material, but it doesn't really work in the icon.