First, flesh and blood cannot inherit the kingdom of God (1 Corinthians 15:50), and therefore anyone who is in Heaven does not have a fleshly body (of the earth, earthy). They have celestial or spirit bodies. God, Jesus, and angels are spirit beings. John 4:24, “God is spirit.” 1 Peter 3:18, “Christ…having been put to death in the flesh, but made alive in the spirit.”
We know very little about the heavenly realms. The scriptures teach that God, Jesus, and the Church are divine in nature (2 Peter 1:4). Additionally, the angels are divided into seraphim (Isaiah 6:2), cherubim (Ezekiel 10:21, 1 Kings 6:27), and the archangel Michael (Jude 1:9). More information is not revealed because apparently that knowledge is not useful for us. “…He has given us everything necessary for life and righteousness, through the knowledge of Him” – Christ Jesus. (2 Peter 1:3 BBE)
Do all Christians receive the same reward in Heaven? No.
True worshippers – the Church of Christ (those faithful unto death, Revelation 2:10) will receive the divine nature (2 Peter 2:4) and sit on thrones (Luke 22:30). Another group will stand before the heavenly throne and have palms in their hands (Revelation 7:9). These Christians needed to experience “great tribulation” in order to wash their robes “in the blood of the Lamb.” (Revelation 7:14) Others will not be admitted into heaven. As Jesus said, “…I will profess unto them, I never know you: depart from me, ye that work iniquity.” (Matthew 7:23)
But some may wonder about 2 Corinthians 12:2: “I know a man in Christ who fourteen years ago—whether in the body I do not know, or out of the body I do not know, God knows—such a man was caught up to the third heaven.” The concept of heaven can also refer to spiritual governing authority. 2 Peter 3:5,7,13 teach there are three heavens associated with three worlds. The first order (from Adam to the flood) was under the administration of angels; the second (post-flood unto Christ’s kingdom) is under Satan; the third (Christ’s actual kingdom on earth) will be governed by Jesus Christ and His Church.