This is very nice.

There is one thing a bit off to me, the perspective of the bus to the left. If you can see the back like this, then the bus cannot be straight as it is here. It should go more in depth, and the wheel would be oval. Or you should not be able to see the back and keep the bus perfectly straight as it is.

Hope this makes sense :)

I feel like I should put the darker shade below, because there is a shadow below, however I should remove it above the line, because there is no real reason for it to be darker here.

I will try it, thank you for your feedback.

Hello,

I am a noob at pixel-art, I don't know about any techniques and so. What does aa mean ? I know of aa in the video-game world, but not in pixel-art.

Thank you, these are my first attempts at pixel art. Megadrive palette is constraining and I am avoiding dithering in these. I am learning a lot of things :)