Looking for realistic outlined white detailed truck decal of a walleye

Hi,
That definitely sounds like something very cool to personalize your vehicle with. While I don’t off hand know where to get one, I am sure you can find what you are looking for online. There may be such retailers that offer just what you are after in different sizes. You can also approach some of them to see if they will custom make you this paticular type of truck decal. I would suggest that you get one done by a business that has a great reputation.
You need to be confident that the walleye decal is going to stay securely in place. If it is well made, it will hold up to the wind, sunlight, and even the moisture. You also want to get a decent price on such an item so shop around and make some comparisions. I would love to see it when you are done so send me a picture!