Little help/tips

[OneKiwi]

Right I have this shell that I am going to do another for a club mate.
Sorry for the bad pic

http://i30.photobucket.com/albums/c338/simonandhanna/IMG_20130926_181721.jpg

THe yellow at the front is going to be a fluro on the next shell.

My question is how can I shade the flames so they come out better and a little more contrast between the yellow and orange an not use a separating line?

Do I have a little darker yellow around the edges?
Go a lighter from nose to flame end on all colours?

Thanks for any input and tips

[n design]

You could shade with some red, but if it was me I would put i thin black line round the flames that way they will match the other set.

[OneKiwi]

I got it looking better

http://i30.photobucket.com/albums/c338/simonandhanna/20140122_142820.jpg

[mattr]

Now it's on to the big shell. ;)