Reddit mentions of Earth Directive (Earth Command Book 1)

I took a year off from my job in the middle of fighting migraines and managed to write my first novel. Now I am working on the second book in the series but I am worried that the first book still needs work.https://www.amazon.com/Earth-Directive-Command-Book-ebook/dp/B00AS2I7QY?ie=UTF8&keywords=graham%20mcmurtry&qid=1462826368&ref_=sr_1_1&sr=8-1 I have had numerous people praise the book and even offer help on future books but without the money to pay for a professional editor I went with my Father and Brother-in-Law to be my editors.
All that aside - before I complete my second book... what should I do about my first book? I will give away free copies (digital) to anyone willing to read and or review the book for me and give me valid feedback.
TL/DR - I wrote a book, now writing the second, want help promoting the 1st book. Free digital copies to those that want to have a go.

(Inbox me for copy of the book)

Thanks!
ElephantRaccoon