I made videos to describe the IPA (English) and mouth position in English, Chinese, Spanish and French. Spanish: https://www.bilibili.com/video/BV1gv411W7qj French: https://www.bilibili.com/video/BV1Jg411u78d English: https://www.bilibili.com/video/BV1Qy4y1T7ti Chinese: https://www.youtube.com/watch?v=dra7EXbFoq8&list=PLkqn2B-WzaCzQi322OthhU7fqSrOQT6Nw