Hello Gustavo,
Thanks for contacting us
Switch to the Mobile view mode and edit you images manually or on the Property Panel set the exact size that you need.
Please subscribe to our YouTube channel: http://youtube.com/nicepage?sub_confirmation=1
Follow us on Facebook: http://facebook.com/nicepageapp
You will run into less issues if you move one at a time from left/desktop to right/mobile.
You will run into less issues if you move one at a time from left/desktop to right/mobile.