We wrote this article providing some nifty techniques for improving isometric games.
Isometric and top down games do actually need adjustments that are pretty invisible to players, adjustments that actually make a big difference in graphics, especially for tall objects.
In this post we show how we tilt objects to give a better illusion for tall objects such as buildings or lamp posts. This technique is also used in other games like for instance in "The Legend of Zelda: A Link Between Worlds".
Here's our illustration-full, code-full post showing how we used this technique.
This is our first dev post. If people like these kind of posts, we're willing to make more :)