With the attachment control, it is not possible.
A possible workaround is:
Switch the Attachment control with a Gallery in the form control (This is currently not supported, but you could be able to add a gallery inside the DataCard by Doing a Copy and paste), switch the Gallery Items property to:
ThisItem.'{Attachments}'
And the OnSelect property of the Naviagte button to:
Launch(ThisItem.AbsoluteUri)
when Clicking on the Arrow, it will open a webpage with the proper image attachment.
Reference:

Please also follow the reminder to configure the other properties as needed.
Regards,
Michael