Oh sheesh bub.. where to start?
I really did NOT want to edit this considering how bad it is.. But dont let me telling you its bad bring down your spirit any. I am just an honest crit. But dont think that i'm going to say it's bad and leave it at that without giving you any pointers on how you could fix this.. as most would do.
But do not take any of these things im telling you to heart, suck them all up and use them to your advantage. Ok well, first off.. 2 things that stick out the most to me and any other GFXer, are your lines (which are jagged and unshapely), and your shading (which is totally off and over texturized). A sword should be sleek, smooth, and balanced. I mean obviously with a mis-shapen sword (like youre going for) it cant be completely balanced, but try to make it looks as useable as possible. Your shading, completely lacks any type of smoothness, or light source. Try to balance your color usage, and learn about light sourcing. Here, i've done a step by step edit, but as with all my edits this was quick and probably not the best, but it's a good example of what you should be getting towards and how to fix these certain aspects i've explained to you.
*Edit*
I also took a whack at your little "hydra" thing on the edge of your hilt, didnt realize that was there at first. But anyways, here ya go it was another quick edit, but yeah. And also.. @ UnknownSoldier, the whole "mythological creature" thing is a hydra, and has alot to do with water. If you know anything about Greek mythology, the hydra was a gaurdian to the waters, a monster created by the god of the seas, Poiseiden.