Wow what a great idea! I'd say maybe put those balls down onto a surface and try for an even more realistic approach. :D

hey Lee ! in this excercise you mostly nailed the lighting . it seems you did also take in to consideration of the ambient light which is a strong point. though as you can see, i believe where you put the object should also be considered. the 2 bottom right one will show you that the object really isn't in the environment you put them in. You literally just lit the object with the lighting condition you see in the picture. So a good way i think to do this excercise is also to put the object on the ground plane (any ). on that plane you get to i dentify the lighting situation at that specific space in the picture. Here you will also have to think about the type of shadow. do note that it's not only the color and light that is most important. it's also the believability of the whole image. Therefor context is the key. Hope this will help !

Hello! This is a good exercise to learn about light, keep it up! The only thing I noticed is that you are missing the concept of ambient light. This refers to the light particles that bounce off the ground and reflect on the part of the sphere that is not directly affected by light, so the sphere on a cloudy day should have a large ambient occlusion area and a bit of blue from the sky on top, but less shadow elsewhere. These videos by Marco Bucci explain it very well: https://www.youtube.com/watch?v=7fLV5ezO64w&t=107s https://www.youtube.com/watch?v=gwLQ0cDb4cE&t=1314s Hope this helps :)

The last two(bottom right) feel a little over lit to me, but looks like a fun exercise. I really like the dark room one with the phone.

Super cool exercise!