Pictures is very simple:
There are two ways of downloading pics you can Host the Image or you can paste a link from image same with the videos.
Hosting an Image:
Its simple just go to hose and image click Browse then look for your pic, it will download shortly then click on copy and pasted to the regular typing box.
To check your pic right next to the Send there is a Preview bottom you can click to make sure its working correctly.
If your having dificulties please PM Me.