Seamless 10-Second Video Blend

I have two short live-action clips that need to feel like one cohesive 10-second shot. The task is to blend the second video into the first with a natural, soft-edge overlay—no obvious borders or picture-in-picture look... (Budget: ₹1500 - ₹12500 INR, Jobs: Adobe Premiere Pro, After Effects, Color Grading, DaVinci Resolve, Video Editing, Video Post-editing, Video Processing, Video Production, Video Services, Visual Effects)