I have already laid out the pages, uploaded test images with IPTC tags, and connected payment on my Pixpa site. What I now need is custom code that turns the layout into a smooth, sales-ready experience. Here is exactly what I am after: • Gallery enhancement Gallery setup and display to be enhanced. • Gallery search Each gallery should expose a search bar fixed at the top. A visitor types any term that exists in the images’ IPTC tags and the relevant thumbnails filter instantly without a page reload. • Multi-image selection Every thumbnail shows a small checkbox underneath it. Visitors tick as many boxes as they like, then hit a single “Add selected to cart” button—no need to open each file. • Automated tiered pricing Before the customer is bounced to Pixpa’s checkout, a clear price summary appears. The total reflects the number of images in the cart and adjusts to the tiered pricing rules I will supply (no coupon codes involved). Please build these three features inside Pixpa’s custom code areas (HTML/CSS/JavaScript) so they work across desktop and mobile. Once finished, hand over the clean, well-commented code, brief instructions on how to adjust tiers later, and a short walkthrough video or screenshots proving everything works with the live site.