What a beautiful pictures. Handsome couple. I had to download it to see.
Click on the reply button, then a box comes up, type in your message as normal and then scan down and click on the little browse button. Another box comes up and asks fort he picture file you want. Find it, then click on the picture. Then click on "ok" It will show up in the browse box you clicked on. All you do now is click on the send button. Do not click on Preview or it makes the picture go away. GOod luck