Can the spell Illusory Wall in front of a Prismatic Sphere conceal it ?
Also has there been any examples of what can be done with Illusory wall in regards to decoration ? such as could I make one that's used as a floor look like it has tracks through it or if a wall can it have an illusory painting hanging up ?
Any special tricks anyone else can recommend for use with this spell ?
Yes, to all of your questions.