Hi IsvRada, thanks for entering this reward and for what looks like a comprehensive set of tips. Unfortunately, all submissions to Just rewards must be intelligible to English speakers (check the terms and conditions posted in each reward).
While we do hope to support other languages in the future, right now we're not able to effectively moderate content, or ensure its compliance with our legal and safeguarding obligations, if it isn't understandable in English. It's fine to submit in other languages, but you must include an accurate English translation at the same time (YouTube's auto-generated subtitles don't count, I'm afraid - they make too many errors).