About this 3D model

Something I made for my girlfriend for Valentine's, three variations include an elegant but simply heart within hearts design (Hollow) the same again but (Solid) and finally a simple heart with no hearts inside (Simple) ------ PRINT SETTINGS ------ I used 0.16mm layer height on a 0.4mm nozzle, I also set the shell to 4 perimeter walls. No supports are required and no additional bed adhesion. For the charm pictured scale the part from 100% to 150% (1.5x its original size) and leave the infill at default. Please leave feedback and makes! Thanks!