Draft: My coat of arms

Coats of arms are a way created to represent somebody's identity, created during Middle Ages (but based in more ancient principles). They're extremely related to flags, because banner of arms, one of first types of flags, are nothing more than a rectangular representation of a coat of arms.

Currently, I'm creating my coat of arms. It's only a draft, so it might change if I like. I'm trying to make it based on heraldic rules. It looks like this, for now:

Now I'll describe my coat of arms. There's a specific language to this purpose, but I'll try to be clearer. I'll explain the elements of my coat of arms detail by detail, to be more didactic. To a fast explanation about the elements of a coat of arms, click here.

Shield: It's divided by horizontal stripes (per fess), being the first in amaranth, and the second in blue (azure).

• In the amaranth division, there's a lion in white (argent) profiled, with four legs in the floor (statant), and blue tongue and nails. I chose the lion for represent my name, Leonardo, being this canting arms.
• In blue (azure) division, a golden (or) moline cross. I chose moline cross because I use this in some web forum and other occasions, and representing my religion.

Mantling: In blue (azure) and gold (or).

Crest: A white (argent) rising owl, with blue beak and legs. I chose the owl because it represents Philosophy, one of my greatest interests.

Motto: "Homines sumus, non Dei". Translated from Latin, "We're men (humans), [we're] not God". I always thought humility is an important virtue, and I liked to set it on my personal motto. Also, my brother helped me to chose it, so it's someway special.

A potential problem I find in it is that amaranth is a rarely used tincture (color), so I might have to change it to red or purple. Basically, I said all I had to say.

Your comment is very important to me. Remember that my coat of arms is under construction, so your opinion can have influence in final result.
A little break to coat of arms... probably, next week I return with flags.