Yes, tonner has quite the fashion doll cone-shaped torso. It is true for Fashion Royalty too, the clothes are so beautiful and well made, but you can't enjoy them properly unless you have a doll with that very unusual body shape. T.T
Snegurochka, have You also tried Tonner Antoinette clothes? Or the clothes for Tonner Dejavu dolls -they are even slimmer than Antoinette body (which is slimmer than Tonner Tyler body)
Yes, Cami & Jon or Antoinette clothes fit her older dolls (with the taller body) quite well, although in the shoulders they are still too big - usually moving the top snap over a little helps with that. But the newer bodies are too short for them, it would be a lot more work to make it fit properly. The problem with the Tyler body is that the hips are smaller and they are bigger on top. A-line stuff works sometimes, but anything fitted through the hips is a problem.
Here is my Ishtar, she has the older, taller body, in a Tonner outfit I altered: