Meh why bother....
14 years ago
General
In the end no matter how much i try and try i can never produce any good art lately, as such im gonna refund my commissioners here soon, I just dont have what it takes in me to fail so much...Im sorry for those who were expecting more of me but I just dont have the time or energy for it or the talent.
FA+

Commissions aren't for everyone. I tried a story commission once and it just wasn't for me. I failed miserably. x3
Like me, your art comes from sudden and random bouts of inspiration. Not exactly the best business model. x_X;
Sorry to hear you've hit a wall with your art. But I'm sure a nice break and a good relax will have you back and drawing again in no time. :)
Practice, practice, practice.
Research, research, research.
Taking time off from commissions might be a good thing; draw stuff for yourself for a change. Drawing for others creates pressure, especially when they're paying you for it. Draw what you feel like drawing for a while. Experiment with different styles or just draw goofy stuff that you'll never show to anyone. It's a lot easier when there's no expectations attached.
Just keep working on your art and keep practicing, do what strikes the fancy of your muse and let it fly till your muse is satisfied (no matter how good or crappy it looks). Enjoyment of the art comes first and everything else will follow.
And I like your art.
Don't let this turn you off from trying again someday though, just keep trying to improve.