Thanks Tony, your Emil's color looks great. I need to do a trop scheme!
The plug bulkheads were painted RLM 02, and the engine parts got some Humbrol Metalkote Aluminum and flat black. Working from photos, I grabbed my box full of electronic junk and located cables to be used for the engine plumbing. I cut some brass tube and used thin CA to secure them to the drilled holes. I then inserted the black wires as in the reference photos. It will mostly be hidden once it goes into the fuselage but the busy look is there.
I added several lines on the other side.
The plumbing fills the area and busies things up.
and the other side
and dry fitted in the fuselage to see how it looks
I still may add more lines to further make it look more busy. The real Dora had a ton of wires and lines in there. Once the part is secured to the fuselage it will receive some oil washes for weathering to dirty things up a bit. Still lots of small things to do.