Bed adhesion and some issues with lifting

Hi, relatively new here. Was trying to print cars and some other models when i got the issue of it slipping off the plate and some lifting. Some background: i have less than 100 hours worth of prints and have only been printing some small stuff. i tried printing a katana but all have slipped off the bed mid print and got wasted. i did a bed test and this is what i got:


The brown one is POLYLITE PLA (normal) set as generic pla on ORCA SLICER
the white one is POLYLITE PLA SILK set as generic pla on orca slicer with +15 degrees celcius
on nozzle.

i printed some cars a while ago aswell and both same parts have slipped off in the same areas. anything i should do?