Opinions on first mock up?

Edit Post

Hello everyone, hope you´re having a nice day. After been lurking on this forum for a while, and you know, learning about the topic and collecting information, I decided I finally would post.

As the title says, this is my first mock up ever. Im 168cm tall (5´6) with a goal of 180cm (5´11). On the mock up I have added 7cm on the femurs and 5 cm on the tibias for a more proportionate look and because its what most people agree is safe on each segment.

In my opinion, It looks natural and with almost no difference, which has led me to believe theres a high probability I followed the mock up steps in a wrong way. Maybe the camera angle is wrong or something like that, or maybe not. Maybe I just have good proportions for Limb Lenghtening. Either case, what are your opinions on the proportions?

Original Image.
https://imgur.com/a/MXQi7vs

Mock up (7cm femurs, 5cm tibias)
https://imgur.com/a/boBwugR

Thank you for your time.

Edit Post

I just realized I actually did it wrong and just added 5cm on the tibias. Ill post the actual mock up in a few minutes.

Atual 12cm mock up:

https://imgur.com/a/A389ycu

Edit Post

Yeah, I think I may have made some mistake in the first 2, but I believe the third one was done correctly, except for me accidentally lenghtening my hand. I really need to get better at doing these.