Well, first off, Zach Galifianakis has a super dense beard, which is quite straight. Your beard is not as dense and it is curly, so it will not look like Zach Galifianakis' beard. However, you can trim it to be similar. But not yet. You need more length first, I would say.

You can already start by defining your neckline if you like - your natural neckline is very well placed, so I would just go with that. You can shave or use clippers to make the line a bit sharper.

You can also use a razor to sharpen up your cheek lines, but I wouldn't bother if I were you. Your natural cheek lines are perfect and you will save yourself a lot of maintenance grief if you just leave them.

You cold also trim your moustache at the lip line if you want a trimmed moustache... I generally advocate a long moustache, but that is up to you.

Stop trimming your moustache; greater glory awaits!
...but if you are going to trim, do it right, go pencil...
...then, of course, a nice copstache can be cool too...

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