2x2 Grid of Online School Banner Ads

Prompt

{   "type": "2x2 grid of banner advertisements",   "theme": "{argument name=\"main theme\" default=\"SNSスクール\"} for {argument name=\"target audience\" default=\"ママ\"}",   "design_style": "soft, approachable, bright lighting, featuring {argument name=\"color palette\" default=\"soft green, white, and natural beige tones\"}",   "layout": {     "sections": [       {         "position": "top-left",         "visual_style": "photography",         "image_description": "Smiling woman working on a laptop at a table, a toddler playing with toys in the blurred background.",         "headlines": ["ママの“やってみたい”を応援！", "子育てしながら学べる", "SNSスクール"],         "features": {           "count": 1,           "type": "icon with text",           "labels": ["自宅で無理なくスキルアップ (with house icon)"]         },         "call_to_action_button": "無料相談"       },       {         "position": "top-right",         "visual_style": "photography",         "image_description": "Smiling woman holding a white mug, looking at a laptop.",         "headlines": ["ちょっとの時間が、大きな一歩に。", "スキマ時間を未来につなげる", "動画講座で学びやすい"],         "features": {           "count": 3,           "type": "circular icons with text below",           "labels": ["スマホでも学べる (smartphone icon)", "1日15分からOK (clock icon)", "繰り返し視聴できる (play button icon)"]         },         "call_to_action_button": "詳しく見る"       },       {         "position": "bottom-left",         "visual_style": "watercolor illustration",         "image_description": "Illustration of a woman with hair in a bun, smiling at a laptop with a green mug nearby.",         "headlines": ["はじめてでも大丈夫！ (with beginner mark)", "在宅でできるSNSの仕事", "未経験OK"],         "features": {           "count": 3,           "type": "circular icons with text below",           "labels": ["サポート充実 (heart icon)", "パソコンが苦手でも安心 (laptop icon)", "収入の柱をつくれる (yen coin icon)"]         },         "call_to_action_button": "体験してみる"       },       {         "position": "bottom-right",         "visual_style": "photography",         "image_description": "Smiling mother and young daughter sitting on a sofa reading a picture book together.",         "headlines": ["家族との時間も大切に", "自分らしい働き方へ", "ママの笑顔がいちばんの未来になる。"],         "features": {           "count": 3,           "type": "checkmark bullet points",           "labels": ["場所や時間に縛られない", "やりがいも収入も叶う", "子どもの成長をそばで見守れる"]         },         "extra_graphics": "Small illustration of a house an...