With my chin held high, I can proudly (and surprisingly) say I completed both of these on the first day.   
 
 
Bertie was fun, almost threw me for a loop when I almost stepped on the zapper tile, but I survived.
Lillian9 was a joy to solve.  I like these levels, even though I haven't finished the Red Planet yet (but ALMOST).
Thanks for yet another great set of levels!  
 
 
-- Roger