for Ubuntu.

i find most free picture software too basic or too difficult for my limited skills. 

microsoft 'picture it' came with the very first desktop i ever bought and it was easy to use.  i kept the disc and installed it on every desktop i've had since including this one. 

a year ago this desktop crapped out due to a microsoft update 😠 and could only be saved and used with the installation of Ubuntu.  

so now i need new photo editing software that's compatible with ubuntu and easy to download and use.  GIMP was recommended but it won't install on my pc.  SHOTWELL comes with this OS but it's too basic.  

with 'Picture It' i could make collages of different pictures, draw on pictures and 'touch up' pictures, eg, get rid of pimples, wrinkles, beer bottles etc and it was easy.  

can anyone recommend software similar to the microsoft "Picture IT' software please?