1. Open your favorite photo:



2. We need to create one  White layer and another layer with favorite photo and transparent layer above it:



3. Now going to trace the photo in the transparent layer, trace with small brush:



4. We traced the photo, turn off the visibility of the photo layer and see what the tracing looks like:



5. Use Magic Wand and in the transparent layer click outside the tracing.
Go to Select > Inverse. Now, only the tracing should be selected:



6. Return on to the photo layer and press Delete:



7. Press Ctrl+D for Deselect and Voila:



Now use your favorites color and colouring T-Shirt, jeans and other details. I used Magic Wand to select area for T-Shirt, jeans and other.



Download .PSD from here.

Good luck, and be sure to check out our other Photoshop Tutorials!