After a great deal of thought I thought maybe it looked odd and lumpy because it was unblocked, and because my teddy bear has ears where a baby has a big, smooth, round head. And then I looked at it, and looked at it and looked at it and realised I had it upside down I turned it the right way around, and all of a sudden it started to make sense!
Here it is, with its matching Baby Surprise Jacket. He's looking very warm and woolly.
And here's a bonus picture of Juniper "helping" with the photos. She's pretty warm and woolly too.