To throw my own few pics in the mix. Warning big pictures.
My miner. It started with only four drills and expanded from there.
I don't to much mining anymore though as refining is a bottleneck at the moment. I've far more rocks than I can grind currently.
This is my refinery/ factory ship. It has 5 refineries and 4 assemblers. I started building it at the very beginning of my game and built it from the collector at the front back. It not built to be pretty but it works.
And this is my just built welder ship. Which I'm currently using to put the outer skin on my ship.
I haven't moved into piracy much yet. I pirated one of the large hauler ships but it was back before they could shoot at you and the parts from that have me stocked. Though I did recently build a small combat ship, which turned out to not be terribly effective, had a go at a mil escort and died. I have a new design in mind involving a shotgun decoy launcher attached to a combat ship to see if I can confuse the targeting AI and see if that helps.
And lastly my in-construction mega grinder. Lots of work to do on it but it does work. Also the capital ship I built in creative back around Christmas when I first got the game. It got too big to finish the inside sadly. It already causes my computer to run at 10 FPS but I'm quite proud of it none the less.
Similarly I don't build for aesthetics in my survival game. Mostly because it requires more resources to do so and I'm stingy with my resources. Plus I tend to think that building for function makes sense in an engineering game, call it industrial aesthetic. Though when I get round to making a proper pirate vessel I will probably go for a more rule of cool design.
I do like Space Engineers though I must admit I was running out of things to do that hooked me until they made the ai ships defend themselves. Now I need to build an ammo factory, I've found that making enough bullets will require a bit of an arms facility and a quality warship that can survive a fight with an escort.