I think I could make this map with Fractal Mapper 8, CC3 or The GIMP. If one can make it with The GIMP, one doubtless also can make it with Adobe Photoshop. As for teaching you, well, you need to learn how to use your software well. If you want to do it with The GIMP, first of all work your way through the tutorials offered here for The GIMP. If you want to do it with Photoshop, my advice is the same. If you want to do it with FM8, do the NBOS tutorial available free at http://www.nbos.com and then do our project group's tutorial on raster mapping with FM8, available free at http://www.vintyri.com/vintyri/tu1.htm. If you want to do it with CC3, ask the CC3 users here for some tips to set you on the right path.