Erone is my first language, which I began in high school. Given its origins, it's not surprising that it was and is fairly simple as languages go, and very heavily influenced by both JRR Tolkein's Quenya and the only foreign language I've ever studied significantly, French.
Tydash is a little different. It's intended to be weird, strange, and complex; before I started I wrote up a list of all the features I wanted in it. As I recall, the list looked a bit like this:
Ergative (which is in itself enough to make some people nauseous)
Pluralization/conjugation by vowel mutation
Levels of formality and exculsion in pronouns
Irregular verbs (Erone has none)