It's a very good start, but they clearly need to have shading applied to them.
Here's a link to a handy little guide on how to do shading in M&L style: http://www.spriters-resource.com/resources...ml-overpage.png
It might be a tad outdated towards the newer M&L style, but it's still a pretty good guide to go by.
Keep up the good work! You're halfway there!