Graphics I made with inkscape,krita and gimp

I tried to make a logo for
the astronomy group
of my college using inkscape 

I used inkscape here .

It is an illusion .
There are three images embeded onto each other .
I used inkscape and gimp here.

Again,it is an illusion in which

 two images 

are embedded onto each other .

I used inkscape and gimp here.

Ascii art -It can be easily done by gimp 

Again it is ascii art -
It can be simply done by GIMP.

I tried my hands on making a 3-D logo using krita and inkscape .