What examples, the quote you gave doesn't include the verse of Zachariah or the verse of Matthew?
These are all from your "preferred" KJV translation, here ya' go:
Zechariah 9:9 said:
Rejoice greatly, O daughter of Zion; shout, O daughter of Jerusalem: behold, thy King cometh unto thee: he [is] just, and having salvation; lowly, and riding upon an ass, and upon a colt the foal of an ass.
Note the poetic repetition. This is fairly common in OT prose-poems.
Mark 11:2-7 said:
And saith unto them, Go your way into the village over against you: and as soon as ye be entered into it, ye shall find a colt tied, whereon never man sat; loose him, and bring [him]. And if any man say unto you, Why do ye this? say ye that the Lord hath need of him; and straightway he will send him hither.
And they went their way, and found the colt tied by the door without in a place where two ways met; and they loose him. And certain of them that stood there said unto them, What do ye, loosing the colt? And they said unto them even as Jesus had commanded: and they let them go. And they brought the colt to Jesus, and cast their garments on him; and he sat upon him.
One donkey, young and male.
Luke 19:30-35 said:
Saying, Go ye into the village over against [you]; in the which at your entering ye shall find a colt tied, whereon yet never man sat: loose him, and bring [him hither]. And if any man ask you, Why do ye loose [him]? thus shall ye say unto him, Because the Lord hath need of him.
And they that were sent went their way, and found even as he had said unto them. And as they were loosing the colt, the owners thereof said unto them, Why loose ye the colt? And they said, The Lord hath need of him. And they brought him to Jesus: and they cast their garments upon the colt, and they set Jesus thereon.
One donkey, young and male, very similar to the previous story, but we already knew that Luke plagiarized from Mark.
John 12:14-15 said:
And Jesus, when he had found a young ass, sat thereon; as it is written, Fear not, daughter of Sion: behold, thy King cometh, sitting on an ass's colt.
One donkey, young and male. Here, John even quotes Zechariah almost verbatim ("as it is written"), demonstrating quite clearly that the New Testament authors were aware of the Old Testament prophecies and made sure to tie them into their stories.
And finally:
Matthew 21:2-7 said:
Saying unto them, Go into the village over against you, and straightway ye shall find an ass tied, and a colt with her: loose [them], and bring [them] unto me. And if any [man] say ought unto you, ye shall say, The Lord hath need of them; and straightway he will send them. All this was done, that it might be fulfilled which was spoken by the prophet, saying, Tell ye the daughter of Sion, Behold, thy King cometh unto thee, meek, and sitting upon an ass, and a colt the foal of an ass. And the disciples went, and did as Jesus commanded them, And brought the ass, and the colt, and put on them their clothes, and they set [him] thereon.
Two donkeys, a female and her colt. Oopsie.
But it is pretty clear where Matthew was going with this. He has the details found in Mark
*, with embellishments of his own. He also cites the verse from Zechariah (much as John does), but interprets it literally rather than poetically (as do the authors of the other Gospels).
These types of details make it fairly clear that the gospel writers were not only aware of the Old Testament prophecies, but that they were willing to skew their own narratives to more closely fulfill those prophecies.
If you want to get into a discussion as to the OT version of a military messiah, the building of a temple, and the differences between the northern and southern kingdoms of what we now call Israel, slide on over to the Scriptural Literacy thread. You might learn something.
*- There is evidence that both Matthew and Luke had access to Mark's gospel and lifted certain sections from it. In some cases word for word.