What Kao said. The only skill you need is your imagination, a few house items, and the ability to scroll your mouse
Feel free to go check out my house if you want to look around. I think the address is 4 walk of the dead in Neriak. Its the big house on the right side of the chasm. Keep in mind it's not done (I'm always changing things and currently revamping an upstairs room) but I have 2 fishtanks in there.