One final photo.
I was able to closely inspect the honey comb we separated from the top board, and I found bee eggs!! This is HUGE because it confirms that the queen is doing her job.
The eggs are the little tiny rice-like protrusions jutting up from the bottom of the comb.
The worker bees will tend to the eggs, and they'll go through a larval and pupa stage after which they will metamorphasis into a honey bee. The whole process takes about 21 days, and I hope to have some additional photos of the various brood stages in future updates.
For now, I need to leave them "bee" and let them do their thing. I'll check them again in about a week & top off the feeder frame. Once the spring flowers start to bloom in earnest here, there won't be any further need for that as the bees will forage for nectar and pollen in the wild.