My Ron Potter 575s looks similar to the first pic. and a few more from him. I love the blue naturally aspirated 850 and of course Speed Racer's 1350/1500s :

my Chief 598 Big Blocks, getting rebuilt right now at Chief.

I envy all you guys who have tons of free space in your engine compartments!

My race boat , set out to rid all of the wires and cables as much as possible

My stuff isn't in the same league as the motors posted above, but for around 4k per, I built the blue 413ci and orange 406ci for my 18' Donzi. I used rattle cans and hosed everything down with as much paint as they would hold.

Nothing wrong with that man! Not everyone has 100k to drop on engines! Mine certainly don't fall into that category, yours like real clean!

Here are mine.
Not fancy but pretty clean, at least I think so.

I want to see the boat, from what I can see it is awesome, thanks