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[xmha97]

[Jesse205]

Isn't the orange check mark too strange, because check marks are usually green, while warnings are orange. There are also images of these icons at https://fluent2.microsoft.design/color.

[planetrocky]

The orange check-mark looks like it is decoration, not a semantic color indicating important information; or at worse might convey a warning, but that is incongruent with the tick symbol indicating success.

Notwithstanding the semantic coloring, the check-mark would be better using the Fluent2 mark with the better proportioned tick.

Fluent2 Semantic Colors + Icons

Note the design here uses consistent coloring and iconography. The link that @Jesse205 provided explains it quite well.

Fluent2 Semantic colors

Accessibility

Also you need to consider accessibility.

Your proposal

How a colorblind person may perceive these