I hate to say this, but that's a pretty large time investment you're asking from someone.  This is several hours of work we're talking about.  If you want to increase your chances of getting help it would probably be good to give some more specific specs: Ie, what size range, what animations are necessary (/most necessary), etc.  If you have particular needs for the style or design, now is the time to say them.

As a side note: more information about the nature of the project would be good.  It seems to be for a college project based on your mention under the "first image", but we'd want to know things like whether you were planning to release it under a free/libre license and whether you'd continue working on it after the project, etc).

That all said, even then you're going to have trouble getting that amount of work, even with the interesting demo video.  You might have a lot more luck if you look through the archives and find a platformer character who already has some of the animations you need and ask someone to expand it to add the other animations.  I maintain a collection of all platformer characters in the gallery, which you can find here: http://opengameart.org/content/platformersidescroller-characters-and-ene...