"outside look" is correct and usable in written English.
You can use it to refer to a general impression of something from the outside, or an evaluation of something based only on its external appearance. For example, "I was impressed by its outside look, but I was surprised by how much better the inside looked when I actually visited the building."
Exact(44)
Even the lighting fixtures, including one in a hallway outside, look authentic.
Look, here's another blighter now, right up the outside, look at him, she says.
It may from the outside look like a spectacle in the making, but it isn't.
Yet, as poor as conditions are inside the camps, the prospects outside look even more dismal.
Outside, look for shadows – if you can't see any, go read a book or something.
(The program has relationships with centers that assume the cost of the treatment. Some, from the outside, look like barracks).
Similar(15)
You're on the outside looking in.
"And right now the outside looks terrible.
He's on the outside looking in.
My place is on the outside looking in, or maybe on the outside looking out".
Denver, meanwhile, was left on the outside looking in.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com