Creation of a video animated for a website

I am looking for someone who can create colorful animated videos with a school theme, each lasting 5 minutes. I would like these videos to be divided into four levels: beginner, intermediate, expert, and professional. It is essential that the videos feature a non-robotic voice and provide educational content aimed at improving learners' language skills. Each video should include various types of exercises at the end, as well as an initial assessment test to help learners determine their level. Additionally, I want these videos to be available in four languages: French, English, Dutch, and Spanish. In total, this amounts to approximately 192 videos, with 48 videos for each language.You have to colaborate with a teachers that know how to make the video clealy for everyone who want to learn a language ( international )