I think the quilt is lovely. However, I can see why it would not appeal to everyone's taste.
A color scheme of red and green really speaks Christmas. If you had chosen a gold fabric instead of the light yellow, I think the Christmas theme would have carried through. As is, it's not definitely a Christmas quilt so it has a bit of an identity issue. The strongly patterned red fabric pretty much takes over the quilt what with large pieces of it framed, smaller blocks of it in the sashings, plus a wide border. Combined with the solid red, this puts a *lot* of red in the quilt -- which some people find cheerful, and others find unsettling. (Sounds like you are one of the latter!)
I also think that this quilt is a little matchy-matchy in that all of the solid colors appear to be perfect matches to the colors found in the print. Every color in the print is represented exactly by one of the solids; there are no "extra" colors in the quilt, no variations of the colors, etc. This, along with the layout (nothing on-point), makes for a relatively static quilt. The eye, as it roams across the quilt, simply comes across the patterned fabric again and again.
But, frankly speaking, lots of people would be thrilled with this quilt even if it didn't turn out as you envisioned. Most of my quilts are like that.