Thank You much for all positive feedback - I appreciate that much.
I've realised that "Lighthouse" were not working so I've change a link to working one.
About my works - original ones were at first skretched by pencil - then details have been improved by pen,
and then I've add alittle more shades again by graphite pencil and blur that (not all thou).
About re-coloring - I've simply use gimp - few effects, brushes - and voilà....