Those are beautiful!
Are blue silver and silver blue the same thing? Just wondering what the difference is...
No, not the same thing. Silver blue is birchen with one dose of Bl added, so ER based. Blue silver is silver with one dose of Bl added, so e+ based.
Note that the last word in the variety name is basically the main variety with the preceding word(s) describing how it is different from that main or base variety. There are probably exceptions to this, but that is the way I understand it.
Examples would be wheaten, with blue wheaten and splash wheaten. Basically all 3 are the wheaten pattern with black changed to blue or splash on the two.
In the blue silver variety, silver refers to the silver (duckwing) pattern as opposed to the color silver/white. With silver blue I assume silver means the color silver/white, since it is describing how the blue variety is modified.
A new variety that I've been working on is lavender silver. It is the silver pattern with black replaced with lavender and salmon breasts, on females, replaced with light pink.