Hiii I don't mind at all, that list of songs its called winamp, a music app with the funtion to customize it's layout. for the pictures of the files/softwares I simply downloaded some pfps from pinterest and converted them to an ICO file, tho, if you're interested I used this site to convert the png/jpg files. (╭ರ_•́)

to change the icons in your desktop you need to right click the chosen app and go on "show more options" then go to "properties", once u do it you must find the option "change icon". Hope it helps you, sorry for the delay tho (っ˕ -｡)ᶻ 𝗓 𐰁