Spread 2 cans of refried black beans evenly on a sheet pan. If they are hard to spread you might need to warm it slightly in the microwave before spreading.
Spread guacamole in an even layer on top of the beans.
In a separate bowl warm cream cheese in the microwave for about 1 minute to soften.
Add 1/2 cup of salsa to the cream cheese and stir to combine.
Evenly spread the salsa cream cheese over the guacamole.
Then sprinkle the shredded cheese over next.
Add the pico de gallo evenly across the cheese.
Then if you want a well defined spider web, use sour cream but mexican crema works too.
Then make little spiders with 2 full black olives as the body and head, then cut black olive slices in half to make the 6 legs.