It is up to you about the neck line, but if you want a really big beard, then at some point you will not want to trim that any more. Now if you want it more presentable for work, then you likely can not have a big beard. You need to find out what your employer expects about that.

Now may I suggest that you post your pics right on here without any links and make them bigger than what is seen in the link. This way we can better see what you are doing and can comment better.
Patrick