That's one of the things I want to dig through soon, CC decorations specifically for this reason, though I can be a bit picky. I did actually pick out a couple statues already, like one for a llama and another for the horse. I do wish there were more 1x1 statues though. I'm not a huge fan of when items look kinda 'floaty' like the mask on a pole from the official extended downloads. I just don't like repeating things too much, especially when closer together.
There may not be a lot of ingame statues but there are heaps of user made fountains, statues, rocks, scenery buildings, etc that are good for decorating. Not just here but over at DG, ZA and ZKL. There is stuff for all styles from natural to formal to alien and fantasy.