prepare the brownie-mix according to instructions and fill 2/3 of the batter to a baking-pan and set aside.
the cheesecake part:
mix cream cheese until creamy
add sugar+flour+egg+vanilla extract
mix until combined
the artsy part:
divide cheese-cream mix into 2 bowls
take one of the bowls and add the pumpkin to the cheese as well as all the spices.
if you need it to be more orange add some food coloring
you should have 2 different colored cheese-creams now. (orange and white)
the artsy part 2:
now take your prepared brownie batter you have already put into the baking-pan and add dollops of the two different cheese-creams on top as well as the left over brownie batter
take a toothpick and swirl it around to make everything look like marbled.