I love this Lalli! As for sharing images from Tumblr, I can't do it from the mobile app, but I can from desktop. Click onto the pic to isolate it, then right-click and select 'copy image link'. Use the Mona Lisa button above to insert the bbcode [img ] and [ / img] code around the link address and you're away! (Or, type those bracket code directly around the link, without the spaces.)