Can someone explain the diction in this quote?PLEASE I NEED HELP!?

"Take for instance that new house of his. It had two stories with porches, with bannisters and such things. The rest of the town looked like servants' quarters surrounding the "big house." And different from everybody else in the town he put off moving in until it had been painted, in and out. And look at the way he painted it - a gloaty, sparkly white." (Chapter 5, pg. 44)