They Look healthy to me!
You've got some challenges ahead with the small space, small light, small budget,but
small pots are a GOOD thing. The plants you have in those pots wont get root bound
in another two weeks.
Remember: You DO want to use up all the pot for rooting though: A FULL healthy root system
supports a much heavier plant and buds than a plant with lots of unused soil in
the center of the pot. So keep upgrading your plants as you go until you reach the biggest
pot that your roots can fill. I transplant just three times, but some folks have success
with 4-5 pots.
Dont fuss the small changes you noticed. Stick to your good grow parameters.
Keep them between 60-80 degrees F. If you're going to miss with the watering, miss
on the dry side...don't flood those little containers. Just enough to moisten the bottom center
of the pot.
When?
Learn to feel the weight of the freshly watered pot in your hand,
and the weight of one that has just dried out thoroughly.
Then water just before the plant reaches that dried out stage.
There are visual and physical clues as to watch for as well.
If your leaves droop for a whole day or two after watering - water less.
If you should happen to sneeze at your plant, and every last
grain of soil flies out in a cloud of dust..well...water more .
What kind of seeds are those?
Best,
Spencer