style reminds me a little of lines like the drawings on greek vases. The font 3 crow is in is one of my favorites--all black (which means it would be really easy to later put in color or put a photoshop style or effect on it, but will also keep its readability in a newspaper ad. Also submitting in a format with the words separate. If you want to take it a bit further, two of the birds are showing industriousness, while the third sort of looks like he/she just got a great idea (okay, so i am a bit weird).