Aww thank you so much!
I don't have a tutorial but if you want I'll gladly make you one! C:
And as for tips umm... I'm gonna be honest.. I just sorta experiment/mess around until I like how it looks
I know one thing I do is I always put the shading at a slant (in places close to the bottom of what I'm coloring such as in the hair) with 2 or 3 lines above it (on rare occasions 4. just depends on how much space i have above the shading) and I almost always put 3 lines when it comes to the hair because there's a lot of space to put lines!
And I put sparkles usually in corners or edges (or above or below the shading) in groups of 1 2 or 3 (mostly 2)
Also with those sparkles i put sparkles outside of the shading using and shading color and sparkles inside the shading using the base color! Sometimes instead of sparkles I do circles of hearts just any kind of little shapes! CX
As for the actual colors sometimes I'll do normal shading or make the shading a different color than the base color
Such as the base color being green I might shade it with a purple or something to make it nice and colorful! c: When I color like this the shading color for a lot of different base colors ends up being purple (because purple usually looks like shading when a lot of other colors don't)
And sometimes I'll color with neon colors over my pics and all I do with that is put it along the edges of the lines
I'm not really sure about anything else again if you want a tutorial on it I'll make one!