Any one of these texture-images can be exported from nawmalMAKE;
modified in a paint program like Photoshop, Paint or Gimp;
or replaced with a new image (this one exported from another character).
The new image can then be re-imported in to nawmalMAKE and applied as a replacement for the original.
Once exported the colors can be altered in a paint program, and reimported back into the sccene. Any texture-image can be exported - here the floor, the seat-color and the characters clothing were changed.
Below are two images showing how the scene looked before and after the above, simple customization.