If you haven't already done so, draw an extra line extending from your Cobrall's mouth.
Finish it off with a very small diagonal line and it will make your Cobrall look like it is smiling.
Then add some detail to your Cobrall's ears like so.
Erase any extra lines and then draw horizontal stripes all the way down your Cobrall's body.
Your Cobrall is now complete!
If you want to brighten your Cobrall up try shading the different stripes, or add some colour like so. If
it didn't work out perfectly the first time, just try again. It will get a lot easier with practice.