Der Preis des glamourösen Luxus, feiner Holzarbeiten und würzig duftenden Leders liegt bei wenigstens 214 000 Euro.

I came across this sentence and couldn't understand why the adjective feiner before Holzarbeiten ends with "-er". Is it genitiv plural? And if it is, why does the adjective würzig duftenden before Leders end with "-en"? Is it dativ and plural, too? Lastly why does würzig not have an adjective ending?