"Wishful" is not one of those instrumentals which act as emotional wallpaper, it has it's own kind of allure particularly because of the atmosphere WaveWalker has created.
The vibrant drum fills continuously kept the track rhythmically interesting, and even though it isn't prominent - I thought the bass really complimented the bounce of the drums too. Melodically speaking there are many elements which appear including guitars and these mesmerizing keys. My favorite though is definitely the airy pad decorating the backdrop.