They all seem great.Nice bright green in natural light. Couple staying small but it might just be the strain. I feel like they are about to take off any day now. Going way better than my first attempt.
Try to be patient. I was looking at your grow and thought maybe you could try CFL or T5 for seedling/early veg....The LED are great when the plants get a little bigger, but the CFL can be placed really close as long as heat is not a problem. I grew autos my last grow, look me up....
If they are still green, They are still either growing up or growing down. My guess is that your small plants will now only get about a foot or so tall when done. It just happened to me. 2 identical autos, 1 got 28" tall, one got 14" tall. Short one looks like a perfect pyramid the big one looks like a bush. Auto's can be freaky..
On my current grow they took forever to take off. Sometimes they will spend a while getting their roots going. Then one day they will just take off, if they look healthy just give them time. Don't over love on them.