A quick search brings up bits and pieces of what I'm about to suggest. I apologize if everything here has already been covered.
Anyways, I was going through some of my legends and a thought struck me, Gods and Goddesses don't have any real description of what they look like beyond the species they resemble. I think it would be interesting if it actually describes what they looked like (hair color/length, head shape, body size, etc.) Also, some of the gods could be listed as often being depicted with a particular object that serves as their symbol and what types of clothes they are depicted wearing (if they wear any at all).
I'm not sure about that. Some of those would be good (general physical attributes, like "large", "fat", "muscular", "young", or symbols), but things like hair or eye colour, or head shape (if done as detailed as for the dwarves), clothes (unless there is something particularly special about them) etc seems too specific and mundane for a god. Especially as - for real-world gods - those things tend to vary hugely over time and between cultures - if they form part of the standard depiction at all.
E.g.: "Hercules is a deity that occurs in the myths of the Greeks. Hercules was most often depicted as a muscular man wearing a lion-skin and carrying a club" - OK.
"Hercules is a deity that occurs in the myths of the Greeks. Hercules was most often depicted as a muscular man with close-set blue eyes, short brown hair, long ears, and a broad nose, and wearing a lion-skin cloak, a pig-tail fabric loincloth, and giant recluse spider silk shoes" - not so good.
I suppose some sorts of features could be inherently more common than others. Eg:
Species and sex: all deities
Major physical characteristics (age, body-size, do they have a beardetc): 50% probability
A single tool, weapon, piece of armour (relevant to their spheres): 20% probability
Minor physical characterisitc (hair colour/style, facial shape, etc): 10% probability
Some other associated symbol or item ("riding a horse", "accompanied by cherubs", "surrounded by flies", etc): 10% probability
An extra one of the above: 5% probability