The color can be changed. In the right corner, there are 3 buttons called "page options". There you can choose red, blue or green.
If you right click on the button "full size", then you can get the original picture in another window.
Their approach is different than flickr. But if you choose a subcategory, like for example "family", then you can choose now too the most recent pictures. About 600 of the most recent posts. See "browse", choose a category, and then "most recent in ...".
I have more problems though with the speed. It is now some 2 weeks that most of the time, webshots is quite slow. At least to me.