By not shopping for photo references, look at the beautiful highlight you missed out on.
It's a little bit of Vermeer that you can add to your own images. Details like this will knock your viewer's socks off.
And here's the cool thing, by spending 10 minutes of your time Googling "ball canning jar" and looking for jars with cool highlights, you are going to start noticing and appreciating the highlights on all kinds of glassware in your daily life.
You'll notice how the stained glass light fixture over your table at Ruby Tuesday's is perfectly captured in your husband's glass of Summer Shandy.
You'll see yourself holding the cat, all reflected in the lenses of your daughter's glasses.
And you'll see a beautiful summer sky, tree tops and birds in flight, in the windshield of a rusted-out truck.
Your whole outlook on glass will change just from taking notice of what you can see in reflections. And it's that paying-attention-to-details habit that will draw people to your coloring work.
Here's another case where an artist really paid attention.