@DawnC86548
The window on the right is definitely a custom project, I don't think you will find a model that matches it. But that's the fun op SH3D [:)]

...

To get started with you could approximate the window on the right by grouping the standard-furniture-set's Half-Round widow and one of its existing normal windows. In my earlier post the two arched windows on the rendered house model were exactly that, a grouping of the half-round window and a normal window that are both included in the standard furniture set.

When you've sufficient experience (and enthusiasm) you could then go on to model them properly in a separate tool such as Art or Illusion.