Drawing human or animal bodies which aren't too realistic
If you want to draw objects (humans, animals, or whatever) that are stylised (i.e. aren't too realistic) you need to learn how to draw them realistically first.

The idea is the same as “learn the rules first in order to know how to break them properly” (sorry for the cliché). You need to understand your subject (what it actually is) in order to reveal it in the way you desire (stylise it). Take a look at what the artists did for the development of the Bambi character.

You can do it the other way round, as people often go for as it brings quick and somewhat satisfactory results, i.e. chose a style and learn to draw this way (like 'how to draw chibi manga girls'). However, understanding the style and not understanding the subject won’t get you far with your art.