Lost pictures

Hello. I deleted some pictures on my iphone 5c (I deleted from recently deleted too) thinking that once I opened my icloud account on my new iphone (iphone xr) I would have them there. The thing is that when I got my new iphone, the pictures weren't there. I don't know why, because before deleting the pictures from the iphone 5c I made a backup. Can somebody help me? I lost 500 pictures :(