I wouldn't, unless you have the money.
I'm pretty new to mini painting as well, and using speedpaint 2.0. They all look pretty good without wash. I did use a homemade wash on one of them and yes it made a positive difference but I'd recommend making sure you like the hobby before investing more than you need to.
Welcome friend. I too am a RIF refugee. Long time lurker (8 years) and occasional shit stirrer over at r/eugene. I'm stoked to see more from our community heading over to lemmy.
Witness - I was about the same age as the kid in the movie. I'm still sketched out in Airport/train/bus station bathrooms.
@pwnieb0y
@lemmy.world