Easter letter cake (extension work)

In Denmark there is a tradition for sending out Easter letters. The letters, which are often cut out of paper in very intricate, symmetrical patterns, contain a little verse or poem, without stating who the letter is from, and the recipient then has to guess who the letter is from. The whole thing results in chocolate eggs changing hands (I don't remember the rules for determining how gets the chocolate).

I don't particularly favour the tradition of sending Easter letters, but the letters are often very pretty, and they remind me a bit of the bridge & extension work done by Eddie Spence. So I though why not try to make a Easter letter cake.

Now, this time I learned that if the Royal Icing does not have the right consistency - just throw it out and begin a new!! Somehow, I didn't manage to get the icing right, and instead of making a new batch, I tried to make do. I shouldn't have - the icing was VERY hard to control, it broke all the time and the lines very soggy, and it made the extension work look messy.