Hey buddy, looking at your 2nd pic in wk2, your growth is just starting to show a little light green, you need to introduce nutes, even 1/3 of what you are going to introduce next wk. As for LST. Autos, left to themselves during the growth phase is actually the best way to move forward. If you think the nodes needs to be pulled out a little to make a Xmas tree shape that's fine just work on the last 2 set of nodes LST,ing them outwards allowing the nodes above just to take over that space and then LST your shape as for now leave it, when your start hitting 4 sets of nodes you can do what I said and train bottom nodes outwards and up towards the light the bud sites will turn upwards and that's leave the middle to take up the 3 other sets of nodes and if you want top above the 5th when 6th node appears. Or not. Good luck pal.