I started in December 2013 once I'd finished (mostly) a Shadow Man project, another project based on a video game, perhaps I'm getting in a rut?
So, five and a half months all told. I only work a couple of hours each day on it though, it's a hobby not a job.
Thanks for the kind words from everyone, soon I'll be able to post some in-game photos and you'll get a better idea of how it all works. But before this I need to build my Clan buildings, I'll be starting them tomorrow.