So..the creation of art begins with one simple thing, and that is perspective...
What is perspective? Well, perspective is our perception of one or several objects in space. Perspective tells us the distance, spatial relativity and dimensions of an object. If two people are viewing the same object or landscape, one with his face to the ground, and the other from a helicopter, both will see that object or landscape in an entirely different way. It is probably the absolute base foundation of good art, and while difficult to master, it thankfully follows some strict mathematic rules that once digested, will become second nature to you when calling upon it to create your art.
So let's look at the components of perspective...
Art is large subject to take on. So, like anything, it's best to understand it at Its most basic and simple core before moving onto the more complex aspects. It could be argued that everything in art begins with the line. As children, we would draw flat illustrations of what we thought we could see, in it's most simple line art form. More a symbolic representation of the object or person we were drawing than an attempt at realism.
But really, in order to accurately portray something in a realistic, conceptual or expressive fashion, then form becomes the most important thing you can learn in order to understand how to draw or paint something. So then what is form?
Imagine I showed you this painting of the Nightwatchmen by Rembrandt, and asked you to recreate it as accurately as you can, in whatever medium you choose.
Now if you're an advanced artist, just go along with me on this! But if you're an absolute beginner you would likely present me with a single exclamation..
"I wouldn't even know where to begin!"
Indeed! There is simply so much going on in the painting...from the mastery of the human figure to the understanding of light and shadow, to the symbolic use of colour and mastery of perspective..It's too much to take in all at once!
The learning of art can be treated in quite a linear fashion. If you can draw a line, you can construct a box. Once you've mastered the drawing of boxes, you can master other forms. Once there, you can turn those forms into objects. Know how to apply light and shadow to a cube? Congratulations! You're half way towards painting an urban landscape!