That’s great! Do you mind sharing the settings that this shot was taken at? Whatever software you use to resize the picture (Photoshop?) strips out the EXIF data so we can’t see it.
If you don’t want to spend $25.00 on a Gary Fong Diffuser, there are much cheaper options. I haven’t used it personally, but here’s something that’s basically the same for about 90% less. 3 Color Pop Up 45 degree Flash Diffuser. From the reviews, it looks like it works, which is all I would expect it to do!