I love this dress by Victorian Maiden. I'm 22, and so I don't really wear super sweet or super gothic lolita styles, I go for a more casual but classic style when I wear lolita. I do love the super sweet and the super gothic styles though. Anyway, this is more my style, I just wish I could fit into it!
Personally, I think for older lolitas, a more mature style looks better (think Victorian Maiden, not Angelic Pretty). Either that or the Aristocrat style. I prefer a less flashy, simple but classic and elegant syle, either more gothic or more lolita.