I started out with fretwork like most of us did.
One day I was working on a piece and couldnt really tell what I was lookin at so I put the pieces I had cut out back in to sort of get some prespective.
Then it hit me thats what I want to do. Cut the pieces out, paint them and put them back in.
Created a learning curve of course like what to do with the holes and such but it was simple enough to figure out.
After that I can now basically just find any old picture, print it out and thats my pattern. no longer need to worry about bridges and the like because basically, all of the pieces are going to become detached. The hardest part is saving the tiny pieces, labelling as to not only the color but where they go back in. I came up with my own coding system for that with just some lines and x's and such.
Now I can do ones with hundreds of tiny pieces but of course it took my some time to work up to that. Fun process though and always more challenging.
Flowers are one of my favorites, that and military type plaques and signs.