You must set one!
Only you know how much you can afford and you don't want to have that sick feeling at the end of the job when you realised you have spent too much.
It's also a good time to decide if your budget is just for the child's mural/wall art or is it to include the whole kid's room decor?
What does my money buy me?
You probably already know that anything hand painted or hand made is going to be relatively more expensive than something printed or mass produced.
The cost of your mural will depend on the artist, the size of the mural, and the amount of detail. It might be a small mural but with loads of complex details. A small realistic trompe l'oeil will cost more than a simple design on a whole wall. In the same way an original painting by a well known artist is going to be much more expensive than a commercial poster or print.
Very often a mural artist will quote by the square foot and sometimes even by the square inch. Wall paper murals are also quoted in this way
(I square foot = 144 square inches)
Hand painted murals
For an artist with a lot of experience and a good reputation, expect to pay in the range of $60-$120 a square foot.
An artist with less experience may start in the region of $30 a square foot.
If you hire someone from outside your area, you may also have to pay travel expenses which could be in the region of $100 - $150 per day, so be sure to get this included in the final quote
Wall paper murals
From $7.95 for a gallery mural and $8.95 to $9.95 a square foot for a custom order.
Framed pictures and Prints
$2.00 to $25.00 a square foot. These are available framed or unframed and the choice of frame is going to affect the overall cost.
Ok you should have a better idea of what your money can buy.
You know what you can and can't afford, and that will help you choose the option to go for.
Keep your budget set firmly in your head. If you choose to go for a kid's mural you can ask the artist to design the mural to fit the budget.
Ask to see examples of their previous mural work and ask what they charged for similar jobs.
You're ready to 'Plan the position of the child mural or wall art'