Add Subtle Abs to Bikini Photo

I have a single bikini shot that I’d like polished for social-media posting. The only change I need is a gentle, slightly toned set of abs—nothing overly sculpted or fitness-model intense. Please leave... (Budget: $10 - $30 USD, Jobs: Adobe Photoshop, Digital Art, Graphic Design, Image Processing, Photo Editing, Photoshop, Photoshop Design, Visual Design)