Some points of criticism:
Generally it is good in explaining many things, but there are flaw points:
1- The Messiah should always remind people that he is not God, but he works according to God's will.
2- His central point should be to invite people to God alone, not to himself.
3- He does not work any miracle according to his own will, but the miracle is done by God for his behalf: to prove he is only a messenger of God .. therefore, he prays God, and God answers his prayer by working the miracle for him.
4- He may state clearly that he is the messenger of God, so that people may understand this.
5- He cannot do everything, but only the things told to him by God.
6- Nothing is in the Quran about his walking upon the water surface..
The miracles of Jesus Christ according to the Quran:
>> he revived some people who died in the same day of their death.
>> he told them about what they are going to eat, and what they stored in their houses.
>> he cured the congenitally blind, and the leper (or the one having albino of his skin.)
All that was by God's will, and in fact it was God's work for him.. while for his own person: he cannot do everything required of him.
Moreover, it was not only Jesus Christ who did the miracles, but many other prophets and messengers did some miracles which were the work of God for the behalf of his messenger.. like the staff of Moses becoming a serpent, the cleaving of the sea for Moses and his people and the drowning of Pharaoh and his hosts.. the she camel of Prophet Salih, and the reviving of the dead tree for the people of Midian.
http://www.quran-ayat.com/hour/an_hour_with_ghosts.htm#Miracles_of_the_Prophets
quran-ayat.com/hour/an_hour_with_ghosts.htm#Miracles_of_the_Prophets