Stretching and withering

Hey guys. First grow so im still learning. My girls are out nearly a month now and the weather hasnt been too good. Some sunny days and quite a few rainy days. Im happy with their progress but just like to get an experienced persons opinion.
So im just worried a bit about some of the stretching going on. Should i be concerned? Also on some of the plants the new growth seems to be withered and looks like its been burned (by heat, not nutes). there are also a few holes on some of the leaves.
So heres some pics. For reference the box in front of the plants is about 6 to 8 inches.

More close ups might help. The yellowing of lower leaves would be lack of Nitrogen. The damage to the top leaves could be slugs or insects. Chemical burning might be possible if you foliar sprayed nutrients or harsh insecticides.

The stretching is due to too few hours of direct sunlight. Your plants appear to be in partial shade?

I agree, they need more sunlight. Pic #7 definitely has some issues, not sure what though, need much more info.