The steps are pretty simple:
1. Buy some rose iron on patches (scroll down for links)
2. Put a pair or two of rolled up socks inside the shoe to keep the shape
3. Find a desired location for your patch
4. Use a heated (preferably, otherwise the wait might not be worth it) iron to attach the patch to the shoe
5. Call your mother because you are an artist and need recognition

Here is the end result:


No but seriously, this is such a cool way to personalize any piece of clothing. I added some on a plain camel hoodie I got recently from Boohoo (10£ / link):

VSCO S2 ft. a dirty ass mirror

And on your jeans? (spoiler, this isn't actually ironed on, I was just playing with the idea)

My Levi's processed with (of course) VSCO Levis 3

Doesn't even have to be roses. They sell all kinds of cute patches pretty much everywhere now with the embroidery trend going on.

I found my roses from Etsy:
- white iron on roses
- small red roses
- larger red roses

Get crafty!

**
EDIT: I ended up stitching a few corners of the patch onto the actual shoe because the glue on the particular patches I got was not strong enough on its own to keep up with my pace.