Each decade brings something new, fresh different. Sometimes change is good, sometimes can be dark hour for humanity. But my perception of 20's include fun stuff like Jazz clubs, Art deco, Flapper girls, and last flash of glamour just before recession hit, and before Second World War (darkest hour).
Black base is Wet 'n' Wild - Black crème, gold on my index finger is OPI - Goldeneye (I think this is my favourite gold polish). Glitter is Color Club - Diamond drops and I stamped image from Born Pretty Store BP-43 with Maybelline - Bold gold.
I just love elegant, clean lines that I associate with art deco. Clean cut lines of architecture, furniture, jewellery, seem to accentuate richness of the materials used to create them. This is just my humble opinion, but de-cluttered look is my personal preference.