Are leaves bending down normal ?

should be fine. just that early 1-lobed leaves? "clawing" is normally a sign of overfeeding, but your leaves are not overly lush and as leaves age they won't remain perfect in all respects. how much light to give can be different early compared to late, and if you have photoperiods, you much adjust to 12 hours vs more hours in vege. however, there's an easy observation to make that will guide you. the distance between growth nodes. don't let it stretch too much, and don't let it stack too tightly, and take some notes of power and distance when you got the plant growing how you want it to grow. seems like those 3-fingered leaves at reaching for light a bit too much. this can also be a good thing. use it in conjunction with node spacing to discern which it is. if node spacing is fine, then it is 'praying' in a good way. if you reduce light too much they will reach harder. it really can be both contexts in this regard, and most ppl think it's only the good one.