Yep, about the right size.
Love your super clean and tidy grow space!
They seem to be lacking from phosphorous though (not potassium), hence the reddish stems and slight discoloration in the leaves (pic 3).
Giving them a P/K booster in addition to their grow nutrients won't hurt them, it will only do good things.
I have had many plants with 13 blades on one leaf over the years, 7 is pretty average, 9 is more normal and 11 is quite special.
Hope this helps, Organoman.