May I offer some constructive criticism? This is only my opinion, and I don't mean to bash you, so feel free to take it or ignore it & I'll mind my own business. Please remember this is only my personal opinion.
It looks not quite a beginner's drawing, but more beginner than professional. There are some areas you can work on to make it look more realistic, but shows serious potential. My advice:
-Work on details. Seems very simple
-Work on lines & shading. It's definitely a start, but lacks realism.
In the second one with filters, I like how the surface the warrior & horse are on looks for realistically rocky. I also like abstract nature the first one with filters, but it is difficult to know that it's a person on a horse.
It kind of reminds of some realism paintings I've seen. Google "realism" to see what I mean.
Like I said, only my opinion. My style might be very different for yours.
Yes, I can tell: all the proportions of the horse and its rider are quite wrong and warped. As is the perspective in your image. Saying you drew it from memory is not really something to be proud of: the best artists in history learned by observation of nature, animal and human anatomy, and plain real life.
This would be an excellent piece to revisit and redo it from the ground up as practice, using actual references of horses, humans, armour, landscapes, and learn about proper perspective drawing.
The basic idea/concept is good. Just your lack of technical skill which is holding you back at this point. Part of your artistic mind is still slave to the 'symbolic' mind, relying on symbolic visual representations.
Keep learning and improving, and have fun!![]()