10 Things You Learned in Preschool That'll Help You With 4k stock footage
http://rowanxkwb133.timeforchangecounselling.com/5-laws-that-ll-help-the-8k-stock-footage-industry
While the above should help to isolate you issue, its only a get started. Know your subject matter, particularly when taking pictures wildlife. Dont be fooled into thinking all things of a picture should be sharp