Some videos maker crate images by pics so this types of images users not likes and you can not get good user on that videos so share eye caching videos on your you tube channels.
From what I have seen and read regarding YouTube videos is that typically videos that offer a high level of engagement, will get the most views. Some of the factors that are involved in creating an "engaging YouTube video" is to make it entertaining and somewhat original. In addition, videos that are just the right length and are not too long will tend to be more engaging and hence get more views.