Its looking a lot better! When animating, try and think of what motivates every movement, what parts are conscious and unconscious, the force of gravity weighing down on his limbs, the effect of his posture. There's infinite depth to a walk cycle, try and take advantage of as many elements as you can.

I love the playfulness of your animations.
Keep it up! You've got an amazing talent 

super good, lots of style

Made some quick edits to improve the anatomy and balance. Awesome start! I love the colours and the designs really pop.

edit: not sure why the colours shifted so radically, go ahead and ignore that.

Inbox is full bro! I'll just apply in here.
My name's Gordon, I'm a trained multidisciplinary animator, I've been working in the industry for 2 years, and I've been practicing pixelart for nearly a decade. You can check out some of my stuff here: https://imgur.com/a/CwWZG. Included in this is work where I had to animate characters from existing sprites, work where I had to design sprites based on existing styles and character designs, and even a job where I designed the whole art style from the ground up, including character designs and story elements. I aim to be versatile, detail oriented, and creative with my work, and in my animations I have a strong focus on weight and dynamic action. Your project sounds like a great opportunity, I'm very experienced with platformers and working in your style should be a breeze. My rate is $25/hour USD, and I work very quickly. If you'd like to see some more of my work, including pixelart, observational drawing, design work, and more, you can check it out here: https://gordon-shier.tumblr.com/.

Let me know what you think, I'm looking forward to hearing back from you.
Cheers,