tbh it seems like the only thing you "drew" here was the mouth (i'm not even 100% sure on that) and that weird death symbol i don't recognize
everything else seems like you just used tools for which isn't always a bad thing but it's usually obvious and doesn't really look as natural
plus honestly this is a bit too simple of a situation to make a drawing of, like maybe you could put a few buildings in the background or whatever it is you have in a renderman server