Greetings,
Your posting for application content caught my attention with a great deal of interest. As a versatile, professional writer, with considerable experience writing materials of this nature, I am the ideal candidate, and one who can offer you the most value.
I've began writing 15+ years ago, and specialize in technical and business writing. In 2005, I went back to school, online, graduating Magna Cum Laude, with a degree in professional/technical writing. I am also a Certified Resume Writer.
I've produced countless materials, on a wide-range of subject matter, for diverse audiences, worldwide. I am very familiar with using graphic elements in my work. There have been many times when I've used screen shots, along with arrows, exactly as you describe, to point out different elements of a product, description, or for step-by-step instructions, along with supporting text. I also regularly use the comment balloons in Word, to edit and critique work of others.
I would love the opportunity to discuss this project with you further, as the job you describe is precisely the kind of work I do best. I can provide exactly what you are looking for, in the highest quality.
Please respond to my proposal, so I can learn more about your needs, and discuss how I can be of most value.
Since space is limited, I can only say, thank you for your consideration, I look forward to hearing from you.
Regards,
Gen Caruso
P.S. Anyone who claims to do this in 3 days is out of their mind!