Seeing the color profile those images come with, guessing from some version of PS 
I can not think of any easy way(s) in Gimp, but then I am not an artist. My stab at it.
The pink swirly thing might start life as a circular selection, painted in with pinks then the iWarp filter applied. It is a very sensitive filter however, not easy to use.
![[Image: l2Dcjpb.jpg]](https://i.imgur.com/l2Dcjpb.jpg)
The grungy image? Very hands on. Build up from layers, texture can come from the old Gimppressionist filter.
![[Image: vLb2UtI.jpg]](https://i.imgur.com/vLb2UtI.jpg)
I can not think of any easy way(s) in Gimp, but then I am not an artist. My stab at it.
The pink swirly thing might start life as a circular selection, painted in with pinks then the iWarp filter applied. It is a very sensitive filter however, not easy to use.
The grungy image? Very hands on. Build up from layers, texture can come from the old Gimppressionist filter.