deleted photos

Hi!

so i’ve got a new phone ( iphone 12) and i wanted to delete photos from my old iphone 8. I’m still logged on the iphone 8 with my icloud i use on the iphone 12. I just wanted them gone from the iphone 8 and didn’t know that they will be gone on the iphone 12 i use know. They are gone from the trash either. I really don’t know what to do. I need those foto’s they are really important. Please help me..