I require some tips and guiding

I have this scene:


I am trying to make it look like a giant robot is attacking the city, but i am having trouble making it look really big and scary and ominous, could some throw me a bone here?

Move the camera closer and look up at the robot.

It will require a lot of detail in the FG objects – make those cubes into buildings with a lot of windows.

We need scale objects - things that everyone quickly recognizes for size and allows for comparison

examples:
doors
windows
helicopter

increase detail in buildings.
point camera up so that the robot looks really big.??

well, i tried using an orthographic camera, and surprisingly it makes the robot look much bigger. i don’t know why xD


Try different focal lengths too. Add some birds and stuff to show scale. Make sure you have lots of small details on the robot itself to express its surface area.