Nice work, and finished clip too:
A pair of tips:
1. Save pixelart as png or gif - that way there will be no artifacts (if saved correctly) and pics will take less space.
2. On 'submit pixelart' page there is guideline to make white background transparent - so that it will not burn eyes. You can make it in Irfan viewer or at IAza.com
This creeps me out :o Nice job.