Promotion Strategy for Series with 2 Books #Indie #Authors

The Secret Supers Series is 5 months old and has 2 books so far. 
Tag Line: If you like feisty heroines, hunky heroes and quirky animals, this superhero mystery and romance is for you.
Super Starrella US: http://www.amazon.com/dp/B01C7WC8R6/ International: http://authl.it/4u0 ?d
Starrella FallsUS: http://www.amazon.com/dp/B01HT1W8AW/International: http://authl.it/B01HT1W8AW?d
StrategyBook 1 Free Aug 5-7 and then 99cBook 2 99c
Promotion Sites for Free Dayswww.pattyjansen.com/promo – Aug 6-7th Cross-promoted by participating authors & a major success! http://askdavid.com/free-ebook-promotion http://theereadercafe.com/promote-your-books/ SweetFreeReads.com  - YA for Aug 5th at $7 http://ebookshabit.com/for-authors/ https://www.freebooksy.com/editorial-submissions/ http://bookangel.co.uk/submit-your-book
Results:
Best Rank Free occurred on Day 3 and book stayed at #2 in subcategory for much of the 3 days. Amazon Best Sellers Rank: #124 Free in Kindle Store (See Top 100 Free in Kindle Store)·       #2 in Kindle Store > Kindle eBooks > Romance >  Science Fiction ·       #2 in Kindle Store > Kindle eBooks > Science Fiction & Fantasy > Science Fiction >  Genetic Engineering
Day 4 – both books at 99c - Sold: 11 of book 1, 5 of book 2
Book 1Amazon Best Sellers Rank: #27,183 Paid in Kindle Store (See Top 100 Paid in Kindle Store)·       #202 in Books > Science Fiction & Fantasy > Fantasy >  Superheroes ·       #220 in Kindle Store > Kindle eBooks > Science Fiction & Fantasy > Science Fiction >  Genetic Engineering ·       #332 in Books > Romance >  Science Fiction
Book 2 Amazon Best Sellers Rank: #27,504 Paid in Kindle Store (See Top 100 Paid in Kindle Store)·       #204 in Books > Science Fiction & Fantasy > Fantasy >  Superheroes ·       #221 in Kindle Store > Kindle eBooks > Science Fiction & Fantasy > Science Fiction >  Genetic Engineering ·       #342 in Books > Romance >  Science Fiction
IncomeDay 1: 362 free copies taken. 3 sold of book 2 at 99cDay 2: 782 free copies taken. 7 sold of book 2 at 99cDay 3: 943 copies taken. 11 sold of book 2 at 99cTotal of 2087 free copies & sold 21 of book 2
Total by Aug 15thSold 12 of Book 1 + 30 of Book 2 = 42 x $0.35 = $14.55 less $7
KU Reads: >4700 of Book 1 + >2900 of Book 2  
Note: Sales tail off quickly, but KU reads continue for longer. 
New Reviews 4-5 Stars3 for Book 1 and 2 for Book 2Caveat: These reviews are probably not all from this promotion.