What program are you using? You need to take a bit and learn how to use it. Especially layering. Just painting over top an existing skin most likely won’t get your skin approved. Skins need to be historical and something that HTC would include as if it were their own.
First the colors you chose don’t appear any rlm color list I have seen. That’s the first thing you need to research, the colors...
Here’s a PDF with digital LW color schemes.
http://www.clubhyper.com/reference/colourcharts/Digital%20Luftwaffe%20WW2%20colours.pdfNext spend some researching standard camo patterns for the plane and time frame of your skin.
Then search for a good 3 view drawing that shows the panel lines and rivets.
See the image below, both the panel lines and rivets are separate layers.

Creating a good template is the hard part the camo is the easiest.
Good Luck!!!