Hi, im not trying to attack you or anything but just letting you know that the log shaped hidey house, usually called a snack shack or something like that, thats in your cage is bad for guinea pigs. If they dont eat it your fine, but it has alot of bad ingredients in it and no small animal should eat it.
Your cage looks like you put a good amount of work into it. Its probably fairly complicated to make 2 story cage like that so good job!
Great cage...did you build it yourself or did you buy it?
Can you tell me the measurements of your cage? I'm planning to build something like that for my boyfriend's piggies cage