ANOTHER tip, you can use the scratch addons, then search up onion mode to be able to see the previous costume. This will help with animating (Sorry for commenting twice I just had the thought)
22:47 *nice* anyways very good video dude you're right about looking for spots that look empty and filling it with stuff, it make the office look less boring, my games always had a problem and have really empty offices and little to no 3d stuff but this video taught me a lot of stuff, especially the lighting and the darkness, thank you for this video dude
Another tip is if you're using outlines, you can make the outline color darker than the fill color, not just black I would suggest maybe a brightness color of 25-50