In this shimmering electric gaze, Sonatas of Lights display, truth not to be explained, how deep can our feelings be? The mystery gives us a measure at hand, and before this warm-dark pond we stand... Flames and Forms rush, changing in incessant hush, feast for the soul, longing to be touched! She sees-through with her eyes, I feel a slight shiver, a bit of respectful fear, but these ones are calm, and with joy I rest on their look... Symbols poured out of my head, in the room they scatter, pearl-dew, vanilla-stream, persimmon-pale... better in quenching my thirst-longing thirst than any ale! And Alphonse smiles, enjoying the seed of image growing to a piece of majesty.
Your subject's eyes could indeed be found in a stained glass window, and the eyes are beautiful. However, I think it looks like stained glass mostly because of the thick lines separating the areas of color outside of the face area. Look at these stained glass designs: [link][link][link] See the similarities between how you did your linework and how the stained glass artists separated the pieces of stained glass with the lead came (the lines in the stained glass windows)?
I think you should practice this art style more! It looks great!