Sometimes you want to keep it simple for aesthetics but most of the time, it's due to budget and or time constraints. You can opt for a minimalist illustration style which comes bundled with all the nice words, it's cheaper and faster to produce. Why? Well, it has no color information, shading is optional and details are simplified to quickly convey the message.
Here's an example of what I've done before in this minimalist style.
Interested in this style for your project? >>Contact me<<