==Jonah==  

 With regards to your edits to Jonah, the expansion is interesting, but not relevant to that present article.  You see, if you are going to include the Matthew reference and an expansion of just how it is that Jonah is a presage of Jesus, then you also have to greatly expand the biblical references and explanations for why Michelangelo selected each and every one of the prophets, and what each prophet had to say about the Christ. There is no room for that, in the context of the present article.  

 Moreover, Jonah doesn't point at the figure of the Christ in the Last Judgement.  His pointing fingers go straight past. In fact, the Last Judgement wasn't planned or even thought of, at that date.  What you have written there sounds like Original Research!  In order to find out what it was that Jonah was pointing at, you will need to find out what was on the wall before the Last Judgement.  From the angle of his fingers, it could have been one of the papal portraits, but I don't know who occupied that position.  Was it Julius?  

 If you look at the page Sistine Chapel, you will find that many of the paintings have monographs.  You could write a whole article on the significance of the prophets and sibyls.