Minecraft – How to update the skin using the new Minecraft.net

There are two likely possibilities here.

1. You didn't colour in the head in the head region.

Minecraft skins have particular regions for particular parts of the skin. Wherever you're colouring, it's not where the head is supposed to be.

Skin-sized version:

I didn't make this reference image - only the smaller version. It's one of the most useful references I've found.

2. You didn't make the Head Accessory transparent

Here's the default Minecraft skin viewed in Photoshop zoomed in:

The limbs, body and head are fully coloured, as is required.

The head accessory - which is a box that wraps around your character's head, allowing you to give it a helmet or crown (for instance) is transparent.

It's very probable that whatever skin you're using, you've left the head accessory regions white. So now you have a white box wrapped around your character's head (not an invisible box) - so your character appears to have a white head.

Here are eight possible reasons why your skin isn't showing:

1. Your skin has not refreshed yet. (If you're playing Minecraft 1.7 or above)
2. You never had a skin prior to the UUID update, which changes the way skins are stored (If you're playing any versions prior to 1.7)
3. You're not using a legal version of Minecraft, and therefore - Your skin isn't registered to your account.
4. The server you're playing on has online-mode=false. (Set to offline mode; no authentication)
5. You changed your char.png file within the minecraft.jar and not uploaded it to your minecraft profile.
6. You've uploaded it to your http://minecraft.net profile, but it's the WRONG dimensions (bigger than 64x64 pixels)
7. You're playing in offline mode.
8. None of youse have an internet connection.
9. You may have a bad internet connection and thus timed out or received incomplete information.

For #1, you'll just have to wait, and/or restart your game.
For #2, there's nothing you can do.
For #3, buy the game!
For #4, you should consider playing on servers that only allow 'premium'/paid users.
For #5, you should probabally log into http://minecraft.net.
For #6, you'll have to scale it down. Sorry :/ Unless you get the HD skins mod.
For #7, go online!!! (Same goes for your brothers)
For #8, you'll need to be connected to the internet in order to retrieve skins.
For #9, nothing I can say apart from the generic "get better internet" or "clear off your bandwidth by downloading/uploading less (ie. Stop watching YouTube on 4K whilst others are gaming)".

Very likely, based on the information you've stated that your problem is #3.