复古风庄重典雅证书金色花纹装饰徽章条纹背景插画

illustration, minimalist style, main colors beige, red and gold, harmonious and formal color scheme, certificate template in the center, horizontal rectangle, decorative elements with red and gold wave patterns and gold border, text includes 'CERTIFICATE Of Completion', 'THIS CERTIFICATE IS PROUDLY PRESENTED TO Name Surname', 'October 28th 2020', 'Mr. Alexander Smith', and a Latin filler text, background with light beige vertical stripes, professional and clean, formal and solemn visual effect, conveying a sense of achievement and recognition --ar 3:2