This would be my second pick. I prefer the cubby offset in your post but of the centred ones, these clouds appeal most.

Simply spectacular. I gather you had several distinct cloud layers with one of the high ones moving in a different direction. Very well worked in all aspects.

I also really like this one, as the streaks in the sky appear to be coming from the top centre of the building.

BTW, I wish I could see the whole image as I attempt to comment on it. The comments section covers 50% of the image - is there a way of changing this your end?

Big wow. Fabulous image, the criss-crosses in the sky are spectacular. And the b&w processing is wonderful.

I'm not bothered by flaws I can't see ;*) Love the contrast between the structure and the creamy clouds.

thanks yeah, i figured that'd be the preference.. just wanted to show the difference between 300s and 480s, but it really ended up being about the light variations of the sun breaking through sporadically

Quite a chaotic scene. I was envisaging your gorillapod attached to part of that cage you seem to be in. Great pic btw.

Nice being closer but I prefer the better defined light/shade patterns in the other one.

Terrific safety. Really bold composition with that timber awning/pergola with great mix of light, angles and shapes at a smaller scale. And those feathery clouds - magic.

I really like this. I need to learn to use ND filters - this is stunning.