Luxury Presentation Background Imagery

I have a short PowerPoint deck that needs to feel instantly luxurious. The copy is complete; what’s missing is a set of refined, high-quality photo backgrounds that give every slide the classic, elegant atmosphere I’m after without overpowering the text... (Budget: $40 - $50 USD, Jobs: Adobe Lightroom, Adobe Photoshop, Background Removal, Graphic Design, Photo Editing, Photoshop, Powerpoint, Visual Design)