The chicks look healthy and happy. I do have some concerns over the predator proofing if you know you have active raccoons in your yard. Raccoons are very clever and dexterous animals. There are numerous reports on this forum of raccoons who reach their arms through chicken wire to grab and kill chickens. So, unfortunately it is as much about preventing reaching in, as opposed to keeping an entire animal out.
Was the hardware cloth you put around 1/4 inch? If so, that will help some. If there is any way to get some more of hardware cloth, that really is the very best thing. If not, maybe you could add a second layer of overlapping chicken wire to reduce hole size, or even add some tarping to the inside of the structure (inside so that can't so easily reach under or rip it to the side.
Don't mean to alarm you, but speaking as someone who lost a half of flock to a bobcat a few years ago, predator attacks are a rotten thing to go through. The more troubleshooting you can do ahead of time, the better.