I am a firm believer in these old style designs, but for certain companies. It works for sign companies.
Consider a WHITE OUTLINE between the BLUE and the GREEN. You have 4 colors on this sign.
I am a firm believer in 2 colors, maybe three for a logo.
I will try and post my new company logo design tonight. It is multiple colors, however, most are based on ACTUAL SIGN MATERIAL and FABRICATION techniques, so, everyone who has seen it, loves it.
You have something on the sign. But a name like QUALITY SIGNS should perhaps make a higher end looking signs.
All design is subjective. You are in business to MAKE MONEY. Consider running some other options and other color options.
Look at CULBERTSON SIGNS & SERVICE in Tacoma WA. Same concept. Professional, old-schooler designed company logo. Nice.