@SmashBrosFan10
I would probably suggest reducing the color palette. You could replace the black of his mustache with brown and you could use his skin color for the buttons on his overalls. There are currently 2 yellows and a white for the buttons, you may want to keep it simple with just the skin color. If it's retro style, it's usually important to have a small palette.
Also, I personally find it easier to use outlines when spriting. I find it helps the sprite appear a bit neater.
The final thing I have to say, is look carefully at Mario's fighting stance when working on your own sprite, working with a reference can help you to include important details and to keep the character's anatomy correct.
I hope this helps!
I would probably suggest reducing the color palette. You could replace the black of his mustache with brown and you could use his skin color for the buttons on his overalls. There are currently 2 yellows and a white for the buttons, you may want to keep it simple with just the skin color. If it's retro style, it's usually important to have a small palette.
Also, I personally find it easier to use outlines when spriting. I find it helps the sprite appear a bit neater.
The final thing I have to say, is look carefully at Mario's fighting stance when working on your own sprite, working with a reference can help you to include important details and to keep the character's anatomy correct.
I hope this helps!