essential oil display

This display is designed to hold essential oil bottles for display. It's my first run so once I have confirmed the interlocking tabs work I will update. I used PLA set at temp 215 and tray at 60. I used fill of only 5 to save on material and time. I made sure to wash the tray with a salt brine and there was no lifting issues.  31JAN17, updated design to have a better keyhole and added the buisiness card slot. Throw me a bone for all the trial and error design work I put in...Thank you