Are angels made in God's image?
Angels do not 'know' good and bad and are not judged as we are.
Remember satan said to Eve, we would be like God - and thus know good from bad.
Thats not to say they cannot rebuke the love of God. That doesnt mean they are incapable of choosing to go bad.... but once they do, they cannot be redeemed.
They are a higher being than humans, and have much greater knowledge.
However; they are fully without sin.
They do not understand the grace of God... as we do.
ALL Beings are created from God and all have hierarchy of existence.
Man's is not lowest [see animals] - but we are lower than angels and if I do not err - angels have a hierarchy [and purpose] as well.
Man being lower than angels can be redeemed.
WE have a soul that is judged on the knowledge of good and bad and what we do with it.
Angels if they rebel - are doomed eternally.
They do not have temptations [since the source of which are the fallen angels who once had everything].
NOW - why did the angels fall?
Being in complete and utter love and having such powers - they - as satan did - may allow their very selves to be corrupted. By having so very much and NOT being God Himself [who is and always will be untouched by sin since it is contrary to Himself] and they being outside of God can indeed fall short of His Permanent state of Being THE Perfect Goodness.
Mankind was created differently than angels and tested.
Though they did fail, God granted them a period of separation from Him to choose good or evil.
Free will was given to humanity.
Angels do not have free will, because they have so much more.
And being without free will, they cannot be repentant.
Once they who had the fullness of God's Essence and love and throw it away - they are immediately the complete opposite of God.
And pride being their biggest fault - cannot return to God.
Once out of His Presence - the evil is to it's fullest.
Hence hell is all evil thousands fold.
Those there are not in God's Presence nor can they have the grace of God.
For it is Grace that fills us with good during our separation from God. It carries us and we are free to choose to keep it.
Make sense?
OR...
God knows good and bad. For He knows everything and everything outside of good, is known to God and cannot be near Him. For His Presence destroys anything that has it within itself via separation from HiS Goodness.
Angels know 'of' good and bad. Angels are not judged on merit but immediately away from God.
Man is judged on the good and bad they do.
For humans were made as such that if they were to fail the test, God would see to it He wouldnt abandon them....yet separate them and fill them with His graces so they could choose to do good vs bad.