I've recently come to the conclusion that no theme is more consistent than Breeze itself.
Breeze isn't perfect, but I don't think it ever aimed to be perfect, but it's consistent, and it's easy on the eyes, and it's rather simple and unique in its own way.
I did use other themes, but nothing (for me) comes close to Breeze, even though the KDE community is doing great work with custom themes.
(By the way, your desktop rice looks really nice :D )
Nope, can't really do that because of my NVIDIA card :/