Looks like you're in good shape chief, good bicep vein and awesome looking dog, I'm jealous 
Those forearms flames are just awesome. I want something like that.
The flames actually only had an outline for over two years. I told my son that I wanted him to get better at blending odd colors. I wanted turquoise and other colors blended, but I still wanted them to appear as flames. I did NOT want the traditional orange/red flame thingy going on, so it's me being kind of weird on the color choices.
He shadowed the flames with red and dark blues rather than black colors.
When it all comes down to it, you gotta do your tats for you. It helps to think it out first rather than just get the first thing that comes to mind. The tat artists appreciate that also ~