[1] Update opacity for disabled states:
Set opacity to .3, according to specified in design guidelines.

[2] Review styling of buttons with icons.
Current rendering of icons within buttons it's not the defined one.

[3] Buttons combined
When cancel and save buttons are combined:

• Cancel should also be styled as a button and placed on the left.
• Add a margin separation of 10px between them.

Attached images for buttons combined of current state and suggested.