let firstTransition: CGFloat = -52
let secondTransition: CGFloat = -40
UIView.animateKeyframes(withDuration: 0.8,
 delay: 0.7,
 options: UIViewKeyframeAnimationOptions(rawValue: 0),
 animations: {
 UIView.addKeyframe(withRelativeStartTime: 0,
 relativeDuration: 0.2,
 animations: {
 self.avatarImageView.setTransform(rotationInDegrees: -35)
 })
 UIView.addKeyframe(withRelativeStartTime: 0,
 relativeDuration: 0.3,
 animations: {
 self.avatarImageView.center.x += firstTransition
 })
 UIView.addKeyframe(withRelativeStartTime: 0.2,
 relativeDuration: 0.2,
 animations: {
 self.avatarImageView.center.x += secondTransition
 })
 UIView.addKeyframe(withRelativeStartTime: 0.4,
 relativeDuration: 0.2,
 animations: {
 self.avatarImageView.setTransform(rotationInDegrees: -29.5)
 })
 UIView.addKeyframe(withRelativeStartTime: 0.6,
 relativeDuration: 0.1,
 animations: {
 self.avatarImageView.setTransform(rotationInDegrees: -30.5)
 })
 UIView.addKeyframe(withRelativeStartTime: 0.7,
 relativeDuration: 0.1,
 animations: {
 self.avatarImageView.setTransform(rotationInDegrees: -30)
 })

}, completion: { _ in
 self.avatarImageView.snp.updateConstraints { (make) in
 make.right.equalToSuperview().offset(self.avatarImageViewWidth + firstTransition + secondTransition)
 }
 …
}