Hi,
Your store design looks good , loading time is slow need image optimization.
One small design feedback is on mouse over on top menu "INFORMASI" menu items color not changing like in left menu items it is green when mouse over on menu item.
PrestaShop Tutorials Videos [How to do Tasks]
https://www.prestashop.com/forums/topic/907438-prestashop-tutorials-videos-how-to-do-tasks/