Need to Film videos for mouth shapes

I am making a study English app for children to speak English using the standards accent of US, and I want to make videos like this [login to view URL] with about 500 words. You can film your face and your accent for reading 500 these words in some videos. But remember to interrupt each word about 1-2 seconds for cutting. (We will do this stage). Notes: - The video clearly shows the face and mouth: pronounced word by word, each word is from 1 to 2 seconds. - All the videos will made on the chrome green background. - Have experiences on teaching English pronunciation and spelling for children (from kindergarten to primary children), standard voice and non-lisp - Video maker needs to have a good looking. (At the age of 20-30) (Female: have nice face. Male: handsome without beard) - Speak native American accent. - In addition, You just gets your budgets when we are satisfied with your videos.