It looks good for the handle so far! I suggest making a darker (but not pure black) outline for the blade part of the sword to make it look more sharp and solid. I also suggest making the brighter parts of the blade more brighter to make it look rich and shiny. You should also make the tip of the sword a bit smaller to make it look sharper as well!
You can just control-z away all your mistakes. That is why it is always okay to go crazy and experiment with pixel art, as long as you don't close your tab or application, you can just bring it back to what it was before