It is such a sweet little painting! I did not notice any of the imperfections you mentioned. It just pops so well from the background and the elements of reflection in the bauble are done so neatly! I can almost reach out and grab it, that is how it feels when I look at it!
What is funny I have a few baubles exactly like that in my tree too! You have an incredible talent and skill!
As an amateur myself, I have never touched glazes or other mediums that help while working with acrylics, but they are on my list to acquire. It seems like a lot of fun from what I gather.
Thanks love, yes glazes are VERY easy and totaly can help. all you need is an acrylic medium of sorts and use paints that say they are more transparent than opaque. (easiest for a beginner)
good luck and happy creating