Let's see this, now.

[EDIT]: Well, some errors here and there, but, it's the best I can do.

[UPDATE]: Changed signatures. Here is the old one.

I liked it.
It looks nice.
But the left Shiro is kinda... pink! And doubled.
And I see you like Pretty Bomber.
The upper-right backgorund 's... too empty?
I didn't like the Font at all.
Overall, it's cool and... nostalgic.
I would say that the font is the only thing I can imagine beeing better :P
Score: 8,5/10

It is the original Super Bomberman's font, used in the title screen.