I like both but Leila looks better with your last name- as both Layla and Sayle have the 'ay' in them. When I see them written togather the 'Lay & Say' stand out to me.
Have you considered;
Laila Sayle
Laela Sayle
Leyla Sayle

Personally I would be going for one of those options, or the aforementioned traditional Leila.

Goodluck deciding.

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