Ummm It might be that, I use Pyxel Edit since 2016 xD

Thanks so much for your help! You helped so much that I don't know what to say..

Also, I'm doing a lot of circles, and I noticed, that to make a perfectly round circle, the start needs to be an even number? Is it true? 

Sorry if you can't understand, my English isn't that good 

Thanks a lot! I re-did it and re-upload it! (But I still can't see it here)

And also, I want to ask you something, how do I make the shadow more like, round and less jagged? I have a lot of troubles with that.. because as you can see in the new image, I see the shadow a little square..

Hey! Hello there! I absolutely love the design of this character, I see some jagged lines there, but without that it's perfect!. For me, the black outline didn't look too good. so I changed its color, here you can see what I did;

imgur.com/a/DjwJP

If you like it, you can re-upload it ! :)

 http://imgur.com/ePiry32

EDIT: It's very small.. and the front image isn't working.. what a #$^@.. 1 hour working for this and it's not even showing.. I'm pretty mad right now..

Well umm, the other image isn't changing.. is there a way to post it somewhere else?

Thanks for the advice! I did all those things, and it turned out pretty good!.

Also, I have a question, as you could see, I used cold colors(blue green, etc), is it bad to use cold colors? Because if i want to make an ice cave, I can't use warm colors, so..