I think it looks good. If anything, I'd say your issue is how long this took you, though I think even that's normal if you've only picked up a tablet pen 2 months ago.
Upon closer examination, your lines don't seem to be one continuous stroke, but rather multiple lines carefully crafted to resemble a single, tapering line. I used to draw lines like this as well, and it's probably the reason you took so long. I suggest getting into the habit of using one line (deleting it with ctrl+z and try again when you don't get it right instead of keeping it and trying to make it look better by adding more lines) to build your line confidence. Doing lineart with one continuous stroke is hard at first, especially if you have to worry about controlling line weight, but in the long run it will make you a lot faster if you learn how to do it :]