Although it may take longer, this method is pretty much a gaurentee.
Once you have unlocked Indominus Rex( 100% genome for raptor and T-Rex, 4 research centres which is one on four different islands and $2 million), go to Isla Nublar and create a small pen, ranger station and a Hammond creation lab.
Start incubating a T-Rex and Indominus. By this point you should also be able to modify the Indominus to have above 150 attack for the Mommy’s very angry achievement.
When both are ready, select one of your ranger vehicles and drive it into the pen. Release both dinosaurs and then take control of the vehicle. Within a minute the two will begin to fight. Get into photo mode and when one of them attack the other snap the photo.
When I did this I got $117,000 for the picture. Because of their rating it’s almost foolproof to get above $100K.