Ключевые слова: 15, 15 anniversary, anniversary, anniversary logo, badge, birthday, card, celebrate, celebrating, celebration, ceremony, classic, congratulation, decoration, design, element, event, flat, flat design, gold, graphic, greeting, happy, icon, illustration, invitation, isolated, jubilee, label, letter, liquid style, logo, modern, number, party, patch, retro, seal, sign, stamp, sticker, symbol, tag, template, text, wedding, year, years,