Developer needed for creating an animation of one walking person by using JS and HTML5

I want you to create an animation of one walking person in this movie by using JS and HTML5. [login to view URL] A lot of people are walking in this movie, but the only thing I want you to create is the normal walking one. I have attached a screenshot of "a person walking with a sign". He is "the normal walking one". ↓ It's super important for me. I like the texture and atmosphere of this doll. For this reason, I would like you to make the torso shape, hand shape, foot shape, foot angle, shadow shape, etc. as indistinguishable as possible. I will use the animation created by you on my web application built by Rails. At that time, I am going to modify the JS code so that it works on various browsers. Therefore, whenever possible, write code that does not require compilers/polyfills. You can use the JS library that works in browsers and that is popular for animation.