If I close the iMessage, the photos that I send it’s like a text

When i send photos like I message it showing to others that I send it from my old number but I want to show that I send it from the number that I use now.

i don’t want the number that’s on the photo! And if I close the iMessage, the photos that I send it’s like a text. And I can’t get a photo by message from one phone.

[Edited by Moderator]