Base on step 2 , i tried drawing my kitten and then stylizing it... realize i pretty much draw everything the same size though
in step 3, i use colour pencil, colour pencil with water, water colour, gouache and black pen ink
then finally, i look for various photos from pinterest , base the cat pose and building design and some ink colouring on instagram =)
I don't usually draw buildings and neither do i like colouring background, but here you go!
Mixture of brush pen, some superfine permanent ink pen, dry watercolour and ink colours