input needed!! i got this balayage done 5 days ago and i can’t tell if the color is okay after washing at home

title. i can’t tell if this is what is considered to be “brassy”. it seems to be leaning super yellow? i don’t know much about hair and coloring and such but i just wanted a change from my natural brown so badly. i thought she did such a great job when i left the salon but now im nervous. the last picture is what it looked like after leaving the salon.