This is my first thing. I'm just beginning with pixelart, so i'm not that good
Welcome to PJ and pixelling.
This is fine as a beginner but the sword uses a gradient that makes this NPA (not pixel art). This needs to be corrected. Use the 'edit it' link below the art to uplaod a new pure pixlled version.
If you haven't already check out the forum's resource section and review cure's pixelart thread and the noobtorial thread too. The forum's WIP section is for help and feedback before submitting art when you have questions of any kind :)