I agree on some points, but for the non destructive photo adjustment there is an excellent open source alternative caleld darktable which you should check out i

I agree on some points, but for the non destructive photo adjustment there is an excellent open source alternative caleld darktable which you should check out if you haven't: http://www.darktable.org/ http://www.darktable.org/ Arguably, they don't support none of the vector layers, but thats something you could do in Inkscape. Agreed that it might be more convenient to stay in one tool, though.