You might want to tone down the edge highlight. It looks like you made a cavity map then blended it overtop? I think it is coming off a bit too strong at the moment.
that is just stunning. So is it like a cloud texture on top of a blue sky texture with some sort of blend gradient texture used to transfer between them? in any case the result is stunning!
Texel density is all over the shop, the cracks on the concrete part are far too dark, theres no AO, and where the concrete pieces meet the ground is far too harsh with zero blending.
Um, the gpu does most of the work in substance - including calculating all the blending etc. The reason usage doesn't drop is that it's constantly working as fast as it can to show you pretty pictures.
George Miller is a former medical doctor, this explains the so many great medical touches in the film. Bleeding Mad Max, skin growths, cesarean, still born, milkers and many more.
I would suggest doing this all withing one shader. Usually cheaper and better quality than alpha blending. https://www.google.com/search?q=parallax+cubemap+interior+unreal
b1ll is french, right? I never read his posts since my eyes feel like they want to bleed after the first sentence. just paint, and stop trying to communicate.
Color seems a tad bit concentrated, I would tone it down a bit. The handles on the ammo box blend in too well that they are hard to see. Try to contrast the handles and clips with the Base.
Isn't killing your brother the best way to keep him by your-side forever? That, and cutting yourself to bleed on him, Lordy, blood-bonding has never been more meaningful.
Ahaha yeah, I'm used to 256x256 textures at work on mobile, low rez island padding / bleeding haha well then those islands work for 512. Cheers and good luck :D