Large of the two pieces came out of the final firing in one piece.
The colour really developed from bisque and the cobalt + manganese produced a nice deep blue.
Terra sigillata survived without flaking off, but there is some crazing / cracking which was apparent after bisque. Doesn't seem to have developed more where it was previously evident .. but it has become more uniform across the whole piece's surface. I.e. similar effect can be seen all over now.
A slight shine is evident, but it's not as obvious as I was initially hoping it might be. Fewer layers of terra sig and burnishing between each, will hopefully rectify next attempt.
