Here's a close-up shot of it:
The veins are barely visible in the one on the left! Here are some ivy leaves made with both…
You get a gold star if you guessed the leaf on the right was made with the impression mat that came with the student kit. The fail level isn't quite as dramatic with the petal veining mat, but I think it's significant enough to warrant replacing it:
The difference is subtle (and not helped by the flash), but you can probably see that the leaf on the right was made with the student kit mat. Perhaps I'll toss this mat to my daughter to class up her Play-Doh tools.
I'll post a tutorial soon about how to make (and what to do with) gum paste leaves. Stay tuned!