She looks a little starved, like she wants to grow but just doesn't have the energy for some reason! I'm sure now u've started with nutes things will pick up. I agree, she does look kind of bare, but once those tops/branches grow, u should have quite a decent canopy so something to look forward to! I wouldn't let the soil get bone dry man, once it does it'll slow down her growth again, u want to keep things optimal throughout for fastest growth. I also wouldn't really advise stretching her too much, as once she flowers she WILL stretch, all you want is to get those tops a little larger and more developed, that kind of requires the light to be close. My 2 pence. Either way you're off to a good start.