Every good artist has a good sense of perspective and structure, how can this be achieved?

Thumbnail sketches!

Yes, you heard me right! Through a practice taking no more than 5 minutes you can become a better artist. So what have I been doing today?
Well, besides painting a dorky indian laying in a bed (Not happy about that one)
I've been painting thumbnails and practicing my presentation. Because when you're working at a large AAA company you wouldn't want to arrive in a rusty car dating back to the 90's (Old Volvo cars, I'm looking at you).

I don't work at a company releasing triple A titles, I actually don't work within this industry at all. But maybe one day I will, and It would be a shame if I wasn't prepared!
Anyways, I gotta run, there are kids waiting for their table tennis coach!

Have a good day, Daniel.