Any ideas what this is?

[Southbound]

Not sure I know how to post a picture here, but I hope this will have a few pictures attached. Anyway, just wondering if anyone can shed light on this situation with my plants. They look pretty healthy, but since they were about 5 weeks old, it seems that the leaves and branches have sort of grown curled underward. It just doesn't look normal to me. Have had a few aphids on some plants, but not too many. I looked through some existing posts, but really didn't see anything that looked like this. Hopefully the pictures will be attached here. Thanks very much!