Create 4 Landing Pages On Shopify With Payment Gateway Integration

I need four individual landing pages built inside my Shopify store to showcase our four signature products made from crystals and Rudraksha. I will supply the product photos, copy, and any brand assets you require; what I need from you is the full page design and setup... (Budget: ₹1500 - ₹12500 INR, Jobs: CSS, eCommerce, HTML, JavaScript, Payment Gateway Integration, Shopify, Shopify Development, Web Design, Website Design)