Heheh, it just takes practice. You'll get the hang of it after awhile. You just gotta keep trying.
I found a few other old things lying around that I forgot to throw into OP, so I'm gonna make a post for them right now. Also, pay attention to the end because there's a link to something I spent the last couple of hours on.
This was about the best I could speed paint landscapes/environments about a year ago. Not very impressive in the slightest. (sorry for the Homestuck I hope you guys will forgive me)
This was how I could speed paint a few months later. My most recent speed paint is the jellyfish-like creature in my last post. This is a perfect example of how not to do perspective, by the way.
Everything else is going to be temporarily posted to dropbox, so if you view this post in the future and the images are missing they were probably taken down to make room.
These three I drew sometime yesterday when I was trying to get motivated to actually
do something. The first two, the button creature and metroid, I plan to sculpt. The last one is just there because Rayman is great.
AAaaand I couldn't sleep because I had a tune stuck in my head... so I spent a couple hours and
made this. It's uploaded to dropbox, and I can't guarantee it's going to stay up forever, so if you like it feel free to download it. It's a song for a level concept I've had for awhile. I strive to be a game designer one day, and fleshing out levels is my favourite part of working on games. I'll do a speed paint of the level eventually. Probably won't be until sometime in March because I've got quite a lot of shit on my plate until then. Feedback would be appreciated; I'm still pretty new at music composition and production.
TL;DR: I MADE MUSIC FOR A LEVEL CONCEPT I HAVE YOU SHOULD LISTEN TO IT