It was fun to see the elvolution of this on the thread, good submission!

Well then you should have pixelled this as 110x110 and concentrate on pixelling and forming shapes and refining everything in a controlled size that is not overwhelming and perhaps more comfortable and then output as 2X if 220x220 was a design choice.

Eventually, your pieces can get bigger and bigger as you get more experience and practice and have the fundementals down...entendido?

 Yeah, I wanted to give it a standard album cover size (220x220 on google) but I ended up losing control of it. Well, I learn with every pixel . Thanks for the advice.

You are getting better with every piece and you do seem dedicated but you seem to be making canvases much to big for you at this time. I suggest whenever you start any piece and you think its all there and laid out then reduce by 50% and start over.