So, first I'd like to state that I like your work on Excalibur's skin, though I don't own it myself. I like the fact that you're starting a corpus counterpart to the Grineer Graxx series.

However, as I look at the new Nova model, small things start to irk me. For example, in my opinion, the helmet isn't as boxy as I would presume a corpus metal helmet to be. Looking at crewmen, they've barely have any large diagonal surfaces like the Corpra Nova does. Comparing to your Corpra Excalibur, i think that feels a lot more fitting as the angling downwards is (whilst utilizing diagonal surfaces) also quite a lot more segmented.

Otherwise, the thing that irks me a little less is the bodysuit. Which I myself am divided on. On one side I'd like to see the bodysuits a bit more broken up using perhaps weapon-system-esque components like for example a Pseudo-shield generator that slightly sticks out the back and wraps around, or even perhaps slight moa platings. This could break up the corpus leathers a little and make the frames unique. However, as i said before, this also is something I like, the corpus leathers i mean, makes it great for if you imagine yourself as a profit of grofit and wish to look the part.
Only other thing that i can remark, which has been stated in other posts, is the coloring of the chest, such large sections in one singular color can get monotonous and really hard to look at. Especially considering i prefer to use red - black - yellow in my fashionframe, large surfaces of yellow can become quite an eyesore.

For the rest, I want to re-state my remark that I love the designs and if I ever get into a Corpus mood I'll definitely look into purchasing any (future) works!

Now, as for the discussion, I want to let others also post their criticisms and opinions here so that FrellingHazmot can oversee the feedback easily.