Child Sketch Digital Cleanup

I have scanned a pencil sketch my child drew—simple lines and shapes on regular paper—but the scan shows heavy ghosting from the back of the sheet, plus eraser smudges that dull the image. I want the piece ready for framing, so the background must become a clean, uniform white while the pencil strokes stay sharp and natural. Please remove all bleed-through, lift the smudges, and then give the lines a touch of gentle colour enhancement so the drawing feels lively without looking artificial.

When you finish, I need two files:
• A transparent-background PNG at high resolution (300 dpi or better)
• A print-ready PDF sized for standard framing with the same resolution

Feel free to work in Photoshop, Affinity Photo, or your preferred retouching software—whatever lets you preserve the hand-drawn charm while delivering crisp, press-ready artwork.