Each function of the image editor operates in a bit of a different way:

1. Flip does not require any confirmation, it is enough to hit Save to confirm, Cancel to revoke the change.
2. Focal Point requires you to click Show point to reveal the target, or you can enter the coordinates manually.
It is enough to hit Save to confirm. To undo the change you can either click or hit Cancel.
3. Crop requires you to click one of the presets. Once you select the preset, a frame appears that you can move around. So far, so good.
To confirm the change you must click TWICE: first click (v) than click Save. And you have THREE ways to undo the change: by clicking , Cancel, or Save (if you fail to click the tick icon.
Additionally, the tick and (X) icons are not visible right away, they only show up after you manipulate the setting, and the icons are fairly pale, therefore it is easy to overlook them. And if you click Save without clicking (V), you lose your change.

Finally, in the Focal Point area, you can enter the coordinates manually, in the Crop size area, the coordinate fields seem active, but they are not. The user could be under an impression that you could select Custom and define the dimensions of the frame, but that does not work.

Suggestions:
1. Remove the tick icon to eliminate an extra click. Approve the change with Save.
2. Replace the icons with one Undo button that affects all three functions. Even better, eliminate the /Undo completely, because Cancel ling out of the editor does exactly the same.
3. Make the Crop size area appear only when the user selects the Custom option.
4. Make the dimension fields active.