Rainbows in the Lehigh Valley Gorge

[TMo]

Great work!! 

Sign making guidelines to think about:
-- The size of the sign matters as far as the cost to make it.  Signs are normally "only as large as they need to be"
-- The sign must be made and mounted to withstand rain, downpours, snow and wind
-- The supports must be able to hold the sign against heavy winds, hurricanes?

This is why the "painted walls" signs were made.  It was way easer and cheaper to paint bricks, than custom creating a sign.
Based on the size of the sign, the supports you have are a decent size for wind protection.

Now, with all that said; 2 options:
1 -- paint the supports in gloss black. They will look like (hollow) square steel tubing.
2 -- sand them thinner, by rubbing them on a flat piece of 200 or 300 grit paper to look like thinner square steel tubing.

Great guidelines, Mikey.  In light of those, my sign's too big - which is something to think about.  I wanted some extra vertical elements, hence the sign, but it's gotta fit in with the other scenic elements.  Although the massive timbers might protect against a gale, the trees they each came out of would have had to be very large and wouldn't justify the expense to erect them. 

Regarding the two options, the "paint it black" is viable, the sanding of paper beams?  Not so much....

Sometimes you think you have something that works until you put it in place, and say....  Nope, we'll have to do something different.  It's OK for now, and I'll have to add it to the list of "redo" projects.