The Ultimate Guide to Custom Paint by Numbers: How to Choose the Perfect Photo
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Article Summary
Turning a personal photo into a paint by numbers kit is magical, but the result depends entirely on one thing: the quality of the image you provide. In this guide, we outline the "Golden Rules" of photo selection, lighting, resolution, and framing to ensure your custom artwork appears as a masterpiece, not a blur.

Lighting makes the difference between a detailed portrait and a shadowy blob.
A Custom Paint by Numbers Kit is arguably the most personal gift you can give (or receive). Whether it’s a wedding memory, a beloved pet, or a family vacation, painting it yourself adds a layer of emotional connection that buying a print simply cannot match.
However, we often see customers disappointed because they uploaded a photo that looks great on a phone screen but translates poorly to canvas. The software that converts photos to numbered zones needs clear, high-quality data to work.
Here is your definitive guide to choosing a photo that guarantees a stunning result.
Rule #1: Lighting is Everything
This is the most critical rule. If your photo is dark, your painting will be dark. Shadows hide details, and when converted to paint zones, those shadows often merge into one large, unidentifiable blob of dark grey or black.
✅ The Good:
- Natural Daylight: Photos taken outside or near a large window are best.
- Even Lighting: The subject's face (or pet's fur) is evenly lit without harsh shadows cutting across features.
- Exposure: The image is bright enough to see the colour of the eyes clearly.
✗ The Bad:
- Backlighting: The light source is behind the subject, making the face look like a silhouette.
- Flash Photography: Harsh flash often washes out colours and causes "red-eye" that looks strange in paint.
- Deep Night Shots: Grainy, dark photos taken in low light.
Rule #2: The "Zoom Test" (Resolution Matters)
A canvas is much larger than your phone screen. A photo that looks "okay" on Instagram might look incredibly pixelated when blown up to 40x50cm.
Try the Zoom Test: Open your photo on your phone and zoom in until the face fills the screen. Is it blurry? Can you see individual eyelashes or fur texture? If it’s blurry on your screen, it will be blurry on your canvas.
Pro Tip: Avoid using screenshots or photos saved from social media (Facebook/WhatsApp compresses images). Always use the original file from your camera roll.
Rule #3: Framing & Composition
In Paint by Numbers, simplicity is strength. A photo with a cluttered background (crowds, messy rooms, busy streets) forces the software to create thousands of tiny "noise" shapes that are frustrating to paint and don't look good.
For Pet Portraits:
If you are ordering a Custom Pet Paint by Numbers, get close! The best paintings are head-and-shoulders shots where the animal fills 70-80% of the frame. We want to paint their eyes and expression, not the grass in the background.
For Human Portraits:
Avoid large group shots (more than 4-5 people). As you add more people, the faces get smaller. On a standard canvas, a small face might end up being a featureless smudge. Close-up portraits or couples shots work best.

If the details aren't in the photo, they won't be in the painting.
Rule #4: Background Noise
What is behind your subject? If you take a photo of your dog in front of a busy bookshelf, the "books" will turn into a confetti of random colours on your canvas.
Portrait Mode on modern phones is fantastic for this. It blurs the background, which tells our software to focus all the detail on the subject and leave the background simple and easy to paint.
Summary: The Perfect Photo Checklist
Before you upload your image to our Custom Kit Page, run through this quick checklist:
- Is it bright? (Can you see the eye colour?)
- Is it sharp? (Passes the Zoom Test?)
- Is the subject close? (Fills at least 50% of the frame?)
- Is the background simple? (Not cluttered?)
If you answered YES to all four, you are ready to create a masterpiece. If you are unsure, feel free to contact our support team. We can review your photo before you buy!
Once your kit arrives, don't forget to review our 50 Ultimate Tips & Tricks to ensure your painting process is as smooth as your photo selection.
Turn Your Memory into Art
Found the perfect photo? Upload it now and let us create a custom canvas just for you.
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About the Author
Written by William Murdock. We are passionate about helping you create art you are proud of. We believe that with the right tips and the right tools, anyone can master paint by numbers.