Prompt: flat design character, sideways, full body of Mark's character can be designed as an individual who is friendly, caring, and experienced in learning English. He may have a down-to-earth nature and is enthusiastic about helping others improve their English speaking skills. Mark's appearance can reflect his relaxed and friendly nature. He can wear casual clothes and appear sociable, creating a comfortable atmosphere for talking and studying. Mark's facial expressions can show his joy and enthusiasm for helping others. He may always be smiling and making strong eye contact, creating the impression that he is happy to share his knowledge. In his character image, Mark might be carrying a book or a smartphone with a language learning app, showing his readiness to share resources and guide others. He could also bring headphones or other accessories that reflect his interest in audio, according to suggestions about listening to podcasts and audiobooks. Bright, earthy colors, such as bright blue or light green, may be suitable to reflect Mark's positive and friendly character., photo