Merge and Edit 3 AI Videos

I have three short videos that were generated with an AI tool. I now need them transformed into a single, polished marketing piece that feels fully professional from start to finish. The raw clips are... (Budget: ₹1500 - ₹12500 INR, Jobs: Adobe Premiere Pro, After Effects, Audio Editing, DaVinci Resolve, Final Cut Pro, Video Editing, Video Post-editing, Video Production, Video Services, Voice Over)