Does Wiping Data/Internal SD in TWRP Remove files Permanently?

I am selling my Moto X Play and want to make sure all my personal files were permanently removed from the device. I did a Factory Reset from within the OS twice and noticed that my photos would still appear after the reset was completed. So then I booted into TWRP recovery mode and went to wipe and wiped the internal SD and Data on the device, booted back into the system and the pictures were all gone. I then flashed a completely different rom and pictures are still gone now. I just want to confirm that at this point that my files are completely erased and could never be recovered.