Nice!
I'm currently growing the same strain. First time grower! Mine is currently at 4 days and looks identical, if slightly bigger than your day 2 pic. I'm a bit concerned when it gets to the size of your day 31 pic above though because I've only got a small tent and not much vertical growing space. At the height you have there, mine will be hitting the light! I'll be interested to know how you prune it.