Let me start out by saying how much I loved this course! I'd been dabbling in writing envelopes but wasn't really getting the hang of it, and this has answered a LOT of my questions and given me insight into how to improve my addressing skills.
I probably started this project 5 or 6 times. I really couldn't settle on the style that I wanted to do, but then I decided to combine two things I've been working on practicing: brush lettering using watercolors, and addressing envelopes with ink. I decided to do the watercolor brush lettering for the names so that they really stood out, and ink for the rest to maximize legibility. I ended up being really pleased with the final outcome!
One thing I was especially mindful of was not going over my limit for mistakes-- even though I'm still in the early learning stages, I didn't want to get into the habit of "I can restart as many times as I want!" since in reality, I'd only have 20% extra envelopes, and those would also need to be used for testing inks, etc. I ended up using 4 envelopes as mess-ups-- 20%, yay!
I know that if these were going out in the mail I'd have to be mindful of the watercolor getting messed up (particularly if it came into contact with anything wet), so I'd look into options such as spraying them with some type of fixative.
All in all, this was a great chance to practice, and I can't wait to try a few more styles!