Complex sentence: The "evolutionary synthesis" that is composed of two steps: a standard algorithm and an enhancement of the standard algorithm Through the feedback from the user, there would be additional synthesize images to be suitable what the user is looking for.
Split into simpler sentences: The "evolutionary synthesis" is composed of two steps: a standard algorithm and an enhancement of the standard algorithm. Through feedback from the user, there would be additional images synthesized so as to be suited to what the user is looking for.