Hey brother
Looking good, you could have a little bit of heat stress going on. Or it could simply be the plant reaching up for the light. If the edges of your Leaf develop something like a Sawtooth appearance that is usually heat stress as the plant gets older if you see that on the top of the plant then you'll know you're getting some stress from your heat or your lamps. But honestly I don't see any problems at this point. If you have good environmental controls you could try lowering your temperature just to touch or raising your light just to touch. If your humidity is looking very good between say 40 and 60 then I would just go ahead and Soldier along.