Hey guys! I know that not everyone can afford Photoshop and the like and there are some great free software (like Krita for example). One that I use is GIMP-- here’s the thing:
Today I saw a post (from a few days ago) saying that hackers have started making ads to a fake gimp website that actually uploads viruses/malware etc intent on gathering your personal information. DO NOT click any ad for GIMP. https://www.gimp.org/ is the official website for it and is the only place you should be downloading it from. 
Stay safe guys!