If converting Warhammer 40K models is the aspect of this hobby I enjoy the most, then painting is perhaps that which causes most apprehension. It is painting that truly distinguishes the model from the toy, because here is where expression is transformed from gray plastic or bare metal, into vivid and captivating imagery.
In choosing the paint scheme for your army, you can reflect its identity. If your army is secretive or stealthy, then a dark color such as black or a dark red can reflect this. You van also seach online to find out about games workshop in Canada.
If your army is composed of noble and selfless heroes, striving for the common good, then a bright color such as white, or a regal color such as navy blue can reflect. If your soldier is from a rural area then you must choose green and brown suit.
You also do not need the army will be limited to a set color scheme. Many of the races found in the Warhammer and Warhammer 40K has a unit, which allows for a different color scheme, marking them as Special Forces.
Some races have a background, which also pushed the color varies; Knights Bretonnian example, tend to have a very personal symbol, which means that even in a single unit, there is unrest contrast.
In the end the only limit on your army composition, shape and color, is your own imagination, and it is this, which is the best defense against the charge that you're just playing with toys or dolls.