My mockups - 172cm to 178/180cm

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I want some opinions on my mockups.
I know that my tibias are an above-average length relative to your femurs, so proportion-wise would be better to gain length on femur.
But unfortunately, the budget is an issue so I'm considering tibia as well, I just want to know if it will look so off...

In the following mockup (https://imgur.com/egUHLXZ) you can see:

- the original pic with my starting height 172cm
- mockup with +6cm on tibia
- mockup with +8cm on femur

Tell me what you think about it, is the one on the tibia still acceptable?

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I forgot to mention:
my wingspan is around 177cm, so 5cm longer than my actual height

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Yep, I made my decision and I'll go with the femur