A slightly different approach.

So far, it's not going fast, but that's nothing new.
With so many pieces it takes time to look for just the right one.
And this time I'm trying to avoid to pull out to much of the "doubles", those are pieces with exactly the same shape.
With the previous colors I would pull out any doubles that I came across, but that means I get a lot of parts of images and it's not always obvious to what Image they belong. In the end a lot of times it turns out to be pieces of different images put together in such a way that they fit and make sense, but they need to be taken apart anyway.

By doing it this way I hope to avoid the confusing part somewhere halfway through all the blue pieces when I try to put down those "double" piece and it turns out I've put them together wrong.
We'll see how it goes.