Quirky casual wedding

Hi! I’m after ideas and advice please!
Our wedding is not until July next year. We’re having a late ceremony at 3pm then onto a village hall for quick speeches then party, food trucks, ice cream man etc. No formal wedding breakfast, we’re not formal people.
The loose theme is colourful wildflowers, does anyone have any great ideas for decorations or the day in general? What colour bridesmaid dresses would go with a colourful bouquet? We don’t want to spend a fortune but are happy to put money into things that people will remember (I.e food!)Thanks ❤️