Ask HN: Getting Game Art Done

I'm building a video game (2d/mobile) and am finding out how labor-intensive art asset creation can be. I know I'm not efficient yet and am making rookie mistakes, but even so, I'm looking for alternatives. Does anyone have recommendations for companies, studios or individuals that will make game art on a contract or per-sprite basis? Also, I'm using a mixture of Adobe Flash and Photoshop to build my spritesheets right now. If there's a better tool set for this work, I'm all ears.