Try making them 0.5 each (they need to match or the texture will be stretched in one dimension.) See how it looks at 0.5 then go smaller to make the lace finer, or higher to make it "bigger". The change of scale won't show in the preview window - you'll have to render to see how it looks.

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire