Pinterest is big hub for finding picture, I daily use Pinterest for finding daily picture I like to use the mobile app cause its easy to use and you can find any image that you want in just a search tap.
You just have to sign up with your facebook or Google for accessing the features of Pinterest and within 1 minutes you will be sign up and asked for your choice and your favourite contents. like and dislikes.
with Pinterest app finding images for me is just a tap with my finger on the app. so easy to use and a huge store of images.
you can also share and download any pin. from the app just with a tap on the image and you will be notified that the image is downloaded to your storage.
you can create your album and add image to it to more experience.
I will prefer this app for every one and its free to use and a pro. and premium feel of the app.
Thankyou.