You don't actually have to be a "member" to see pics. Some are restricted to members, but most are available to be viewed. Click on the website and select your cruise line. Then choose your ship. The deck numbers and names will show in blue boxes on the left near the top of the page. Click on the box to choose the deck you want to view. When you scroll down the resulting page, on the right, half way down the page are 3 blue boxes. The first is "Cabin Pictures". You'll find a loonnnggg list of cabin numbers in numerical order with pictures of cabins from the ships in your ship's Class.
The website is a bit clunky and makes it slightly difficult to get back to view another cabin. But with some practice it gets easier to navigate. The Deck Plan on the left shows which cabins have pictures and you-tube videos of your specific ship. You can click on the deck plan and see the videos. But if you click on the picture symbol, it will say you need to be a member.
Have Fun. Great resource!