Hi AkJim,
When I bought my wife and iPad 2 years past I also loaded a copy of 'Procreate' on it. This is an app for creating art. I also bought the Procreate extra add on features, I can't remember how much they were. I also bought a book 'MAKE GREAT ART ON YOUR iPAD by Alison Jardine. I got this in our local bookstore (The Works, reduced from £14.99 to £5.00).
Other apps for drawing/painting are :-
ArtRage, ArtStudio and Tayasui Sketches Pro.
I have not tried any of these last 3 apps as the 'Procreate' does what I want.
Hope this helps.
Don W