Ask anyone. "How do I improve?" The answer, usually "Practice". I am the type of person that expects results in a week. Expects to finish a big project in a month. And then, after not getting very far, doing something else. Recently though, I have a little sense of accomplishment!
I have been practicing pixel art since Dec 2014. That is insane for me! And as much as I know that it takes constant practice, learning and research to be good at something, this is probably the first time I have kept following through with something. And, as I had a look through my own gallery (commenting vainly to myself how good the art was, and madly replying "why thankyou!"), I started to see the result of practice. Although I still can't quite draw a tree, or a tiling grass tile that I am truly satisfied with, I have taken the challenge of drawing some things that I wasn't sure about or good at, and learned so much from the process.
There are always heaps of good tips you might receive from people. Some might include looking at everyday objects and studying how the light affects them: Copying the greats and learning their process: Watching or reading certain tutorials: Asking others for advice. But all in all, the most boring and repetitive, but great advice you will ever hear is PRACTICE! Sorry you had to hear it one more time! haha
Although I don't feel that I am accomplished as an artist yet, I will leave some examples from my own gallery showing how practice over my time "pixelling" has affected my work. Feel free to comment some examples of your own! Maybe it will be the inspiration some of us need to continue the journey, even when it might at some time feel like a grind!
Dec 4th 2014 Feb 8th 2016 Feb 15th 2016
SPACE BLASTER STYLE AIRCRAFT
Dec 3rd 2014 Later that night March 30st 2016 March 31st 2016
December 28th 2014 March 28th 2016
Dec 5th 2014 Dec 7th 2014
January 27th 2015 March 15th 2016