Listening to yourself and correcting what you want to improve on is very important.
自分の話す英語を聞いて改善したい点を修正していくことが、 スピーキング上達の秘訣です。
Read the text aloud during the 25 seconds
Read quickly so that you can get to the end
Speak with a good volume and be cheerful
Don't have long pauses, no Katakana pronunciation !
After you listen don’t delay starting to speak. Don’t pause or stop speaking!
Don’t worry if you miss a word; say what you think you heard.
Start general, and focus on different parts of the picture. Say what is in the front and back, left and right etc.
Give your idea about how people feel or what they will do next
You should try to include details from the beginning, middle and end of the story.
Don’t try to memorize whole sentences. You are summarizing the story in your own words.