@Inginsub @Suiseiseki regardless of foss/open source stuff gimp is quite good for an image editor that costs no money. other free editors dont stack up against it in terms of features. usability is always an issue when it has a lot of tools.
of course cracked photoshop is better (but suffers from usability issues too) but thats kinda irrelevant
krita sucks for image editing since its primarily a drawing program. yes they both can edit images but they target different workflows