It sounds like you did everything right, but for some reason the bot hasn't gotten the message yet. Does sending a message from Mastodon to Lemmy work? Can you try sending me a message?
Regardless, I added the feed for you, so it should be all set.
Edit: It definitely would be nicer if it would import the body and image, too, although that's a little bit complicated since it would have to translate HTML to markdown, I think. Are you reading this from Mastodon? How do they look to you?