Mtmte Vos - Tumblr Posts
I calculated the heights of the DJD
Thanks to this post I was able to get a generally accurate height comparison approved by Alex Milne, the artist for MTMTE. This is that image:

I found the best image that shows Megatron and Tarn together and generally on the same X plane.

According to the TFwiki for IDW Megatron is 38'... so. I throw all these into Procreate to start the process...

Here, I just put in the first picture, nothing special.

Then, I scale the comic panel to match Tarn's head size and height, as close as I can. I lower the opacity of the image and add Megs, using that comic panel to size him right.

Next:

I add a ruler measuring at 38'ft (I actually used inches to keep the distances equal when adding other lines, wo it's not 100% accurate). I kept in mind that the edge of the image is not the plane they are standing on.

Then, I add the lines and numbers, and get Megs out of there before he gets killed. Using the numbers and lines, I get their heights. So here's my results:
Vos: 27.25ft
Kaon: 32.5ft
Tarn: 36.5ft
Helex: 50ft
Tesarus: 51ft
You can round up or down if it makes things easier in your writings! Hope this helps with your drawings.
Thank you for coming to my TED talk.