I mean you could include Night Mare or other kind of non-so-time-consuming and with a puzzle mounts here but what do I know...
Do these mounts all count towards the mount achievements, or only one "set" ?
I enjoyed the series very much, wish it was longer and I hope to see a version 2 of this soon, thank you! It indeed helped me to track a few missing mounts during the holiday break. It was also cool to see the community helping with questions in the comment section.