I agree with a lot of the comments above.
Here is a tip about contrast and colors. If you are doing a design on a white background, and you have a medium tone or light lettering with a black or dark boarder, subconsciously the mind tries to read the border first then the space with-in the border (the letters), because the border has stronger contrast than the lettering making it stick out more.
Now if the lettering had stronger contrast, (in this case black would be the strongest contrasting color to white, the background), and you went with a medium tone (your orange) for a border or drop shadow, the eye looks at the lettering first, thus making the message quicker to absorb. a white glow line will help separate the colors, which may also help it read better.
Now if your design was on a darker background color it might work much better than on white, otherwise try going with darker letters and use your medium color to accent the lettering.
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