Hi Longway
I think your presentations are very good, but I don't want to be the bearer of bad news.
Some of your pictures are from the National Geographic website (please see the first attachment).
I might be wrong on this, but I think I need to let you know what they have told me.
I have recently sent them an email asking if I can use their pictures for the LR categories, to which their reply was that if I was to use the images privately there was no issue, but as soon as I post the image to a website I have to pay a license fee for each image (please see the second attachment).
I just don't want to have known about this and not tell you, and then you might get into trouble.
Cheers,
Stellajo