You can upload images in two ways:
A. You can upload images by clicking the "Select image" button, or dragging and releasing your local picture at the image area, or using the hot keys of "Ctrl+V".
B. You can input the http address of pictures to up load it.
Tip: You can not "drag and release" or "Ctrl+V" to upload image on your phone but you can upload your local image or take a photo then upload it.