Can an objective criticism of somebodies work, which might hurt feelings, violate 'Right Speech' precept? If we write or verbally express an objective criticism of someone's work, for e.g. if I write a bad(but honest) review of my friends movie, or if I tell my friend that I don't like her cooking (instead of lying to keep her mind), or if I tell an honest truth to someone about something related to him/her, but if in all these situations the words will cause hurtful feelings to the other, will that constitute 'wrong speech' adding up to bad karma or not? 

Note: I will be telling truth in all situations as perceived by me. And the intention here is not to do harm but just to express my feelings.
MN58 Abhaya Sutta:


  (1) In the case of words that the Tathagata knows to be unfactual/untrue, unbeneficial, and unendearing/disagreeable [i.e. painful - AV]  to others -- he does not say them.
  
  (2) In the case of words that the Tathagata knows to be factual/true but
  unbeneficial and unendearing/disagreeable to others -- he does not say
  them.
  
  (3) In the case of words that the Tathagata knows to be factual/true and
  beneficial, but unendearing/disagreeable to others -- he has a sense
  of the proper time for saying them.
  
  (4) In the case of words that the Tathagata knows to be unfactual/untrue, unbeneficial, and yet endearing/agreeable to others -- he does not
  say them.
  
  (5) In the case of words that the Tathagata knows to be factual/true,
  unbeneficial, and endearing/agreeable to others -- he does not say
  them.
  
  (6) In the case of words that the Tathagata knows to be factual/true, and
  beneficial, and endearing/agreeable to others -- he has a sense of the
  proper time for saying them. Why is that? Because the Tathagata has
  sympathy for living beings."


Also:


  It's as if a man were shot with an arrow thickly smeared with poison. As a result of being shot with the arrow, he would feel fierce, sharp, racking pains. His friends &amp; companions, kinsmen &amp; relatives would provide him with a surgeon. The surgeon would cut around the opening of the wound with a knife. As a result of the surgeon's cutting around the opening of the wound with a knife, the man would feel fierce, sharp, racking pains. The surgeon would probe for the arrow with a probe. As a result of the surgeon's probing for the arrow with a probe, the man would feel fierce, sharp, racking pains. The surgeon would then pull out the arrow. As a result of the surgeon's pulling out the arrow, the man would feel fierce, sharp, racking pains. The surgeon would then apply a burning medicine to the mouth of the wound. As a result of the surgeon's applying a burning medicine to the mouth of the wound, the man would feel fierce, sharp, racking pains. But then at a later time, when the wound had healed and was covered with skin, he would be well &amp; happy, free, master of himself, able to go wherever he liked. The thought would occur to him, "Before, I was shot with an arrow thickly smeared with poison. As a result of being shot with the arrow, I felt fierce, sharp, racking pains. My friends &amp; companions, kinsmen &amp; relatives provided me with a surgeon... The surgeon cut around the opening of the wound with a knife... probed for the arrow with a probe... pulled out the arrow... applied a burning medicine to the mouth of the wound. As a result of his applying a burning medicine to the mouth of the wound, I felt fierce, sharp, racking pains. But now that the wound is healed and covered with skin, I am well &amp; happy, free, master of myself, able to go wherever I like."


Can an objective criticism of somebodies work, which might hurt feelings, violate 'Right Speech' precept? -- Yes, it can: 1) if it is not beneficial; 2) if it is not said at the proper time.