PORTRAY verb: to represent or describe someone or something in a painting, film, book or other artistic work.
In the film he's portrayed as a hero.

PORTRAYAL noun : when you portray someone or something.
He won several awards for his portrayal of the dictator.

Analysis lines 1-15

1: Look here, upon this picture, and on this: Hamlet invites his mother to watch his father's portrait and Claudius'. The use of "this" indicates they are very close to the picture and the imperative form is used because Hamlet is rebuking his mother.

2: The counterfeit presentment of two brothers: Hamlet says " counterfeit presentment" instead of "portrait" because to me he wants to underline that a picture cannot tell the truth but it is only a representation of something. In addition also the words: two brothers" add the meaning to it: Claudius is very different from his father, therefore it is only a false representation of two brothers that are very unrelated.

3: See, what a grace was seated on this brow: Hamlet urges Gertrude to watch the pictures again and he starts to make a comparison with his father, in order to highlight his esteem to him. He begins with the metaphor of the "brow" in order to talk about grace, especially the moral one, linked to medieval point of view.
The present past of "was seated" underlines that the king is dead.

4: Hyperion's curls; the front of Jove himself: Hamlet is comparing his father to gods in a way to demonstrate that he had lots of qualities and he was almost perfect. Naturally Hamlet exaggerates but his aim is to convince his mother of dead king's greatness.
The references to mythology render the speak more cultured. Indeed the cultivate could understand for examples that with "the front of Jove himself", Hamlet wanted to underline his father's prudence and wisdom. Furthermore he makes reference to Hyperion's curls because during the middle ages curls were considered elegance's sign.

5: An eye like Mars, to threaten and command: Mars was the god of war, therefore the line means that his father had steadiness and a great ability of commanding (Latin word), so he was a leader.

6-7: A station like the herald Mercury/ New-lighted on a heaven-kissing hill: it means that the dead king's bearing was good as Mercury's when he has just been lighted on a heaven-kissing hill (an hill very high, almost kissing heaven). During the middle ages a good bearing was a symbol for good moral qualities.
Hamlet uses the word "station" because it is a match point.

8-9-10: A combination and a form indeed/ Where every god did seem to set his seal/ To give the world assurance of a man: it is the revealing element of Hamlet's aim: he wants to highline his father's perfections and qualities, as if gods gave him their best skills. So, his mother would be impressed and urged to make a comparison with Claudius.
"A combination and a form" mean that the dead king was beautiful from an aesthetic point of view but also for his ethical qualities.

11: This was your husband. Look you now, what follows: Hamlet underlines that this, the portrait near him, was the picture of his dead husband. Now, he incites Gertrude to look portraits again to see what will happen (it is always used the imperative form)

12 : Here is your husband; like a mildew'd ear: Hamlet repeats "your husband" with a different form of "to be": before it was used the present form and now the past one. The aim of it is to underline the difference between the dead king and his brother and to create a comparison.
In addition he uses a similar: his uncle is as a mildew ear of corn, something rotten.

13: Blasting his wholesome brother. Have you eyes?: "blasting his wholesome brother" means that his uncle had infected his brother. The use of the word brother underlines the Hamlet's goal of highlighting the false relationship between them.
Then Hamlet asks his mother if she has eyes to see the differences between them.

14-15: Could you on this fair mountain leave to feed/ And batten on this moor?:
Hamlet carries on with his similar referred to agriculture. He says that she has stooped grazing to get fad on this more. "This" underlines the nearby and the meaning is that she has left what was really good for her, only because she wanted to yield to life's delights.