To make good skins go to this website:www.minershoes.com/.
This is a great website to make skins.You can start from scratch or just browse through other skins for ideas or you can edit other peoples skins.Also a interesting button when you make skins is the one on the top left corner of the editor this button makes it so that the colour you chose is mixed with other colours thats mostly the same like lighter or darker. For example if you use bright yellow it will take darker and brighter colours around it so when you paint your skin it will be kind of the same colour you choose.Try it then you will understand. You can press the button again to make it go back to normal.Look at the skin I made for a sample on how it looks like:www.planetminecraft.com/skin/camouflaged-soldier/.And then if you want to update your skin just click the upload to editor button to get a skin that you created and edit it.You can also download it so you can post it to Planet Minecraft skins.You can also make an account to post your skins on that website.With the skin editor a great thing you can do is make hats like earphones example from my skins:www.planetminecraft.com/skin/epic-face-dude/.That skin has earphones if you want to see how they look like.One last thing on that website you can make skins like this one:www.planetminecraft.com/skin/epic-knight-720913/.To get lots of views and downloads.Like my Knight skin.So hanks and enjoy making skins Thanks!