I am going to try to help you a bit with some real-life aspects which are a bit off. The platform with yellow/black lines is in fact an elevator platform, since all of these yellow-black lines are on each side of the rims. Seeing that it is close to the floor it still needs to lift off or go down. In this case go up.
Then, pipes in blue mean something cold is running through it i.e. no danger in touching them for example. The paint on the pipes runs off downward which is good.
If you want a meltdown effect, which I see in the back of the mini (the plaque of iron behind the sm's back), then you'd have to fit it to the base further. Most things are black after meltdown, you almost do not see rust anymore.
Your choices are good but you need to structure them for realness. Of course you're always free to invent what you want since it's a fantasy world.