Ok, first pick from top to bottom,
1) engine air intake
2) intake manifold (here air is distributed to each of the 6 cylinders)
3) rocker cover, underneath are valves and camshaft / Wiring is probably of injectors
2nd pic
I don't know what that thing is, maybe something to do with ABS? (don't have it
)
Fuse box: open the cover to see what is what. Its written on it.
3d pic
The plastic tank with the steel cap is your coolant reservoir, keep level between min. and max. Never open when HOT!
Thing on the left is Motormanagment computer. ( the 'brains' of engine injection/ignition control)