The shots are great. A couple are better than great. The two with the white hat are outstanding.
Firefighters love photos of themselves. This would be a great time to stop by the station and give a few away and maybe these guys will love you so much they offer you a ride along or a chance to photograph them more often. They will also use photos for training, mistakes, dangers, things they don't see themselves because they get to busy.
I will point out in the #2 photo two things everyone should be aware of if you stop by and shoot a fire.
I see three of what appears to be compressed gas cylinders, maybe propane, and not a lot of water being put on them. I'm going to guess they were either moved or more water was put on them because you show no after explosion shots.
The other is the hanging powerlines. I watched a crew from a Seattle news show walk right into a set of powerlines at a fire I was working because they failed to look around. The power had just been cut at the pole or they would have had a real bad day. Be cautious and look around. Sorry but it's the fire guy coming out in me.
The photos are great and there are many fire related magazines that may be interested in a couple of them.