Graphics do not matter.
Presentation does not matter.
Grammar does not matter.
It is the idea - that counts.
Always start with a good idea.
Now, it is a bit of hyperbole to say none of the above matters. As you know from experience, polished and professional make all the difference in the world. I have discussed in detail across various media that marketing has changed. Customers are what matter. Message, intent, and your personality are critical... and so the question is: