My mom died last year and now all of her pictures died too. Restore without iCloud?

I'm in serious pain rn, please help me, I have no iCloud and all my pictures got deleted and are gone from my iPhone 6. This is all I have from my mom from last year, her last year, is there any chance I can download software on my computer even for money and get them back? Anyone who restore without iCloud?

Sorry - without backup they are gone. If you could have used some sort of restore immediately after then maybe. After some time now they have been overwritten by new data.