Haibane Renmei, Colorful (Movie) Recommendations
Both revolve around rebirth and specifically spending your renewed life to discover and absolve yourself of past sin; a lot of imagery is shared as well, with the moments "I" comes back into life resembling very closely Rakka's cocoon dream.
Both of these anime deal with self discovery. But while Haibane Renmei is about learning who you are to move on and liberate yourself, Colorful (Movie) is about learning who you are to reorient yourself in life. They're each other's antithesis on the same subject.
Both shows deal with souls set apart from the usual system of reincarnation and given a time-limited chance to correct the errors of their former lives.
Only diffrence - in Colorful only one character is an angel. General topic and even styling are very similar. If you find first one good it`s worth to watch second one.