Neither of these are tech marines
>>545824107
This is a named character: Iron Father Feirros. Master of the Forge.
>>545822951
This is another named character: Caanok Var, the Iron Captain of Clan Company Avernii

If you want a good image of what you're actually going to get, start with pic related. Then afterward we MIGHT get a few features from the other stuff you two posted on top of the this baseline.

Would lov to have the power baton Cannok got though