Awww, don't worry about your English! I had your very same concern a few years ago (I'm not a native English speaker as you can deduce :v), and I still make many, many mistakes, but I soon discovered that it can be fixed with practice.
Besides, as long as you make your ideas understandable enough, there will be no problem ;3.
Or so I believe.
Regarding your work: your 4komas are damn funny. Although I know you can improve your drawing style.
Please post more!