I think you have done OK with the neckline. What you now have is basically a thick chinstrap with moustache and soul patch which is a good looking style for your current stage of beard development. I would suggest that you give the cheekline a bit more definition to complete the effect and after a few more weeks growth, which will improve the apparent density, I reckon your beard will be looking really good. Since you are only 22 your beard is likely to develop a lot more in the coming years and you will probably find that your cheeks will fill in a lot and your moustache will eventually connect. As and when that happens you will be able to go or a fuller style, if that is what you want.

Keep growing. Stay bearded!

wulff