How “Elven” does Silverymoon look? Are there tree houses etc?

About flora in the Forgotten Realms

One of our characters wished to call another a stick in the mud in Elven: Do the elves have their own version of the phrase?

What would the general opinion of half-dwarves in larger cities along the Sword Coast look like?

Has there been like a noir detective type game campaign done for the Forgotten Realms

Spellplague: what happened to those affected by it, such as the Spellscarred, after the Second Sundering?

Are the mountains to the north shaped roughly the same as in the published Forgotten Realms?