WOW!!! That's awesome. Out of the 5 that were released with the Rococco line those two are my fav. In case you didn't know (forgive me if you do) they were meant to be worn wet or dry. They are the only shadows formulated by MAC to specifically be worn wet. Sure you can wet any MAC shadow and wear it wet, but some will ruin. These shadows on the other hand were milled specifically for that purpose. Wear them dry for a sheer wash of color or wet for a dramatic 1, 2 punch. If you are looking for any suggestions Mauvism paint on the lid with Whim (dry) in the crease is lovely. Tres teal looks great paired with other blues or greens..
**That's still so cool that the MA gave you those!!!**
P.S. they will tend to look cakey if when you wet your brush and load it with color if 1) your brush is too wet and 2) if you load too much color onto the brush
Then your first swipe or pat with your brush will have this weird cakey strata on your lid (for me it's always in the inner corner of my lid because that's where I typically start to apply my color)
So, try wetting your brush, tapping out excess moisture, and build the color up, instead of trying to deposit the color all at one time