Well, it's been a while, but I've done a lot of work, since then, and found a better renderer for final images.
Just to illustrate the level of detail I try to achieve, the gauges on the cockpit of the speedboat have individual needles, and I am also working on a full interior.
One thing that helps me not to be overwhelmed, is to focus on one thing. For example, with the interior, I started with the general layout and worked on that, until all the spaces were right. Then, I added the ladderwells, between decks, and am now working specifically on the bridge interior, before moving on to the other spaces. I will probably do the engine room and aft dive room last, as those will require the most intricate detail. My goal is to make a fully realized model of the original ship.
Enjoy!