Poster-001.psd getting posterized doesn't always have to be a bad thing. While all lighting and color adjustments are done via non-destructive adjustment layers, this mock-up includes the option to toggle additional atmospheric haze on and off.
This mock-up is created with the use of AI to generate a minimal cityscape. That AI output was then upscaled (using another AI), manually cleaned of most artifacts, re-lit, and graded. Lighting and grade are modifiable to taste via non-destructive adjustment layers, and the inclusion of an additional 'atmospherics' layer can be toggled for additional realism, or removed to prioritize image fidelity.
If AI involvement makes you uncomfortable, then please do no purchase this as refunds are not offered on digital goods. I understand AI might be a loaded topic for some, and that's ok! (I'll have non AI-based mock-ups soon) AI art is also not perfect, so there has been a good amount of clean up to the image to remove artifacts and oddities to it's creation. This goes without saying, that if you look in places, you will still find some as I see those elements as more textural. If someone is trying to read the text on a building in the distance... you may want to make the logo bigger? :)