Informal does not need to mean aggressively modern-day or casual. Helenium is motivated by some hand drawn capitals that I found contributed to a 19th century map. It's a great font style for informal titles and headings that still keep an air or consistency and ever so somewhat duration elegance. It manages to be formal and casual simultaneously, along with classical and contemporary. Helenium's variety of various weights and drop shadow effects make it useful for hierarchical titles and headings while Helenium Miniscule adds higher flexibility by extending the household with an enjoyable variety of rounded lower case forms.
Font Family: