Perhaps it would be helpful to look at (people I believe are) real Bright Springs and Bright Winters, and notice what's different between the two groups?
Yes, people with any hair color and any eye color can be any season... but people within a certain season sometimes share a certain overall look.
I chose what I think are harmonious pictures of four Bright Springs and four Bright Winters. Let's compare.
Four women I believe are Bright Springs.
These four women seem to have a golden quality to their skin. The depth of the skin tone varies; Rachel's is very fair with just a drop of yellow, while Selita's is a deep golden caramel. Yet there's a flattering (not sallow) yellow-gold-orange glow in each of these complexions.
Four women I believe are Bright Winters.
So: When Bright Springs look yellow-gold, it may seem right, not jaundiced. When Bright Winters lack warmth, it may seem healthy, not cadaverous.
What I suppose we're getting down to is the fundamental temperature difference of the seasons. Yes, Bright Spring has a touch of Winter, but it's still primarily warm. Bright Winter has a touch of Spring but it's still primarily cool.
I realize in this post I may sound like I'm contradicting what I normally say about seasonal analysis. But, to paraphrase myself from that post, there are patterns and tendencies in seasonal coloring. If you're trying to figure out your correct season, you'll use whatever means are available to you. In the case of choosing between Bright Winter and Bright Spring, it may help you to rely on some general truths about Bright skin.
If you're having trouble diagnosing yourself, consider investing in color cards to drape yourself at home.
You may also like:
Distinguishing Bright Winter From Bright Spring, Part I
Drape Yourself at Home