Ok. What are they made of? Plastic or ceramic tile? There are kits for both sold at Home Depot. Step by step instructions are in the kit.
If you're talking about formica wall panels, here is how to paint over them:
If you have fake marble, it is either:
A. Actual stone
B. Contact paper
C. Wall paper.
In any of these instances except A, you havd to remove these papers.
When that is so, Your best bet is to realize a Built in Wall Unit furniture, be that a DIY Or something else you pick up will add to the Architecture while reducing your workload.
The easoning for this is because you can adhere a thin ply to a Great portion if the Wall and integrate that as illusion and a Backing on any Built In Furnishing and paint that.
Otherwise you may find yourself putting up 6 sheets of drywall to spackle and paint.
If you are covering up a painted faux finish , just prime and paint.