I surpassed the 30 minute deadline more than a couple of times and I'm not proud of that, but I'm learning A LOT through this quick paintings.
I try to take the most advantage of doing them, and so I focus on a weakness of mine at a time (mostly light values and colour this last ones). Great exercise. At the beginning the time constraint is a paint but it forces you to stay focused on the base and the big elements first and avoid innecessary detail.
|tobots in the mist|
wish it was truly scary xP
This also gives me the oportunity to test diferent stylistic approaches and try to find my own. And It's fuuuuuuun :D