Who is the cloud of witnesses mentioned in Hebrews 12:1?

I have read in Genesis5:24 that Enoch walked with God and he was not because God took him. Now if God took him from the earth realm and he was not seen anymore, where did he go? As for Elijah, we know from the Bible that he went up in a fiery chariot[2 Kings 2:11-17]. Elisha saw him being taken and got a double portion of the Holy Spirit. Moses was resurrected[Deuteronomy 34:4-7,Jude 9 and Luke 9: 30 -33Am I right or not? Finally, chapter 11 of Hebrews known as the 'Hall of Faith ' chapter tells about people who demonstrated faith in God. When Jesus was resurrected according to Matthew 27:51- 53 and Ephesians 4:8 some saints came up too.They are considered His 'trophies'.What do you say to this information?

I believe, and I´ve read that in some wise book, too, that it is community of all saints, all those that have died and who are already in heaven.

The theme of the book of Hebrews is: Holding Fast our Profession. In Hebrews 11, the author lists a great number of people who had faith in God and followed Him, realizing that the promises of God were true, and looking for a better day. In Hebrews 12, he calls on his readers to continue in their faith, and calls on the witness of the people in chapter 11 as a reason for believers to continue, looking for the day when Jesus completes our faith by bringing us to Himself.

I do believe all of these "witnesses" are in heaven, awaiting the time when their spirits will be reunited with their bodies, made incorruptible, when their bodies are resurrected at the coming of Christ.