Photo Gallery website made with Wix - Update

I have a semi working model with Wix. Here is a brief description Website to exhibit a gallery of photos. Gallery will be for viewing only in the beginning with the option to add the ability to purchase down the road. Style will be modern but friendly and easy to navigate. Design must be relatively simple, clean and effective. People should want these prints hanging in their homes and offices. **All image files will be assigned an internal unique serial number when they are added to the media pool for the site. Serial numbers could have a prefix of jb- and then a numeric 5 digit number beginning with 0001. Photos may have captions for easy recognition. The serial number will be displayed below the image in the left hand corner. Captions, when available, will be displayed below the image in the right corner.** **Images will be displayed in a random order every time a visitor lands on the site. This is to keep things fresh. You must submit an example of a site where products are displayed in random order**. Background for the photo gallery will be dark grey or black. Overall color scheme will be elegant. Fonts will be serif for titles and headers and sans-serif for body copy. Images will be classified into 4 groups or wings of the gallery - Wildlife, Landscapes, Live Entertainment, People & Places. Later other "wings" may be added or removed. The gallery link will show all images in all wings. The four main categories will be displayed on the home page with a link to enter that wing of the gallery. When a user enters the gallery they will see reduced size images (thumbnails) of the photos. All photos will have a comfortable amount of space around them for easy viewing. A user can click on an image to see a full-size image and then have the ability to scroll through the other images in that wing of the gallery, slideshow fashion. Photos will always display the unique serial number and have the option to add a description or caption to them. Images may be added or removed from the viewable gallery at any time. Removed images will remain in the media pool. Include SEO. A contact form will be available for users to send an email with any inquiries they may have. This will be a fixed price contract.