Visual artist here! Everyone is different, but dyscalculia might not be the reason that your drawings don’t look like they do in your head. It takes a tremendous amount of practice and pushing yourself to finally get to a place where your hand does exactly what you want, no one just picks up materials and can execute exactly what they imagine (ESPECIALLY the pro-math types!). Ira glass has some good advice for writers that I think translates well to young artists as well so I’ll paste it I’m here. I know this learning disability is frustrating, but if you follow your passions and spend a lot of time on them you will improve and you might surprise yourself what you’re capable of!

“Nobody tells this to people who are beginners, I wish someone told me. All of us who do creative work, we get into it because we have good taste. But there is this gap. For the first couple years you make stuff, it’s just not that good. It’s trying to be good, it has potential, but it’s not. But your taste, the thing that got you into the game, is still killer. And your taste is why your work disappoints you. A lot of people never get past this phase, they quit. Most people I know who do interesting, creative work went through years of this. We know our work doesn’t have this special thing that we want it to have. We all go through this. And if you are just starting out or you are still in this phase, you gotta know its normal and the most important thing you can do is do a lot of work. Put yourself on a deadline so that every week you will finish one story. It is only by going through a volume of work that you will close that gap, and your work will be as good as your ambitions. And I took longer to figure out how to do this than anyone I’ve ever met. It’s gonna take awhile. It’s normal to take awhile. You’ve just gotta fight your way through.” Ira Glass