Thank you @yashny!

For instance, in this artwork, my view is from the above and in a natural light setting, the light is from the top. This means that the darkest parts will be the bottom i.e. the edges of the leaves. The highlights/shine will be the parts on the middle of the leaves as that is the first spot where the light hits.

Ah good tip! It makes it easier this way to follow this.

And I like what you said about keeping it consistent throughout the painting. I agree. It is very important, else we will have a rather funny looking piece with shadows and shine all over the place. You have a great week there @yashny! Keep drawing and painting and crafting and share it with us here on Steemit! SteemOn! :)