Here are a few screenshots from my worlds.
This is my main base -- the outside, at least. The inside has a main room, bedroom, zen room, alchemy/furnace/enchantment room, pool, auto sugarcane farm, and an upstairs glass sitting area.
These are a few of my creations - I have a little jail cell for mobs (that I don't even use), an automatic wheat farm that uses water to harvest all wheat to a collection point, a weird spiral DNA type thing made of glass, lava, and water, an underwater base, and a hotel type thing. The back of the wheat farm was my house for quite some time and features a bed room, furnace/crafting room, pool room, room with hidden bookcase doorway, hydroponic farm, and nether portal.
Here's a view of my golden waterfall, my very first base (the brick house), and another view of my auto-wheat farm.
Here's a view of my farm (wheat, pumpkin, watermelon, sugarcane), my floating pavilion with wheat/tree underneath, and my name in the back there made of water/lava
And finally, here's a view of a normal looking house I made. Inside is a full kitchen, bedroom, crafting area upstairs along with a bedroom connected to a balcony. Also has an underground nature room. To the right of the house is a storage shed, and that huge thing in the back is a monster spawner. It drops them 23 blocks -- for the ones that somehow survive, there is a killswitch that dispenses fire charges to kill them off. After which I can flip a switch to activate a water channel to push their drops to a collection point.
Thanks for viewing!