Still all your images are 300 * 300 size.
Please make sure you have followed the instruction:
How to make the images size as demo?
- First, go to Settings > Media
- Set thumbnail size : 500 * 280
- Set Medium size : 600 * 365
- Set Large size : 840 * 480
- Click on Save Changes to save the change.
This is also described in docs https://doc.acmethemes.com/supermagpro/#SettingupImagessize (How to make the images size as demo?).
If you have again problem, please contact us from here http://www.acmethemes.com/contact/ also providing wp-admin details, we will see you issues.