Who needs expensive Photoshop subscriptions and fancy drawing hardware? 91-year-old grandma Concha García Zaera creates and sells beautiful and insanely detailed masterpieces using nothing but a mouse and Microsoft Paint.

Zaera’s artwork, which is all put together using a Windows 7 PC, has attracted more than 300,000 followers on Instagram. It features everything from serene and colorful landscapes to cute and cuddly pet portraits.

Probably the best Paint artwork you’ll ever see

Living in Valencia, Spain, Zaera started using Paint around 12 years ago when her children gifted her a computer. It became more of a hobby when her husband fell ill and Zaera found herself at home more, taking care of him.

Zaera also took art classes, but was unable to practice with real paint at home, Digital Synopsis reports. So she continued honing her skills in Microsoft Paint instead, taking inspiration from postcards her husband used to send.

What started out as simple sketches of things like houses and mountains turned into surprisingly detailed and incredibly colorful masterpieces that have proven incredibly popular among Zaera’s growing following on Instagram.

Zaera, who has made headlines in the past due to her impressive artwork, has her own online store, where she sells her artwork as framed prints from just €19 (approx. $22) or on tote bags for just €23 (approx. $26).

She also has her own Wikipedia page, which describes Zaera as “one of the most recognized artists of Spanish pixel art.”