Tall bride

Maybe you could get some flats and dye them before adding bling. Perhaps a shoe repair place or custom shoe service is available to help here.

It may also be possible for your fiancé to get shoes or boots with a little extra heel so your selection will be a bit broader.

Some brides went with sneakers maybe due to their unique taste or just to be more comfortable. One got high tops and decorated them with stones. Of course that is only a concept since you do not want sneakers.

I think you'd like Sophia Webster for color, whimsy, and style. I'd suggest mules, espadrilles, or slingbacks. Loeffler Randall is also popular for block heels, but I can't speak to comfortability. You don't want anything too heavy to walk on grass, and if you can get an ankle tie.

If you're willing to splurge, Gucci has beautiful crystal embellished kitten heels. I have a pair in nude that are super comfortable, they come in some really fab colors (I think green is included).