To upload images on Twirll Portal, Logon to Twirll Portal and follow the below process
Operations > Manage Albums > Upload Images
Step 1: GO to upload image followed by Operations >> Manage Albums >> Upload Image
Step 2: Click on Upload to Browse to select images from your local device folder
Step3: Click on Upload to add selected image in Twirll Image folder and upload
Step 4: Select Create New Albums to upload images in new Folder or select Folder from dropdown if you wants to add images to any existing folder, and then click on Save to final upload