Red X Sketch by *jbramx2 on deviantART

So in my fandom, Red X from the Teen Titans cartoon (Teen Titans Go comic) is Jason Todd.  Click on the picture, my explantion's there.

But I also thought up a fanfic idea that finally gave Jason Todd his new identity in the DCU comics.

I thought, well shoot. They should just make Jason Todd the Red X of the DCU.  He's been the Red Hood, and the Red Robin already. Maybe he should just finally become the Red X aka

ANYWAYS, I drew this a long time ago. I had planned to ink it and then post it, but I kinda liked the sketchiness of it. Also it needs work. I'm still new to drawing male anatomy or in this case, muscular male anatomy. I should've used a reference picture, but I mostly worked off of my memory and off of random pictures of superheroes across the internet over several months.

As always, I would appreciate any constructive criticism. I know it's highly exaggerated, but it still looks very much "off".  Even the most highly exaggerated superhero has some anatomical sense, I'm just not sure where I went wrong here...I just know it's "wrong". .(arms? legs? torso? head?) Help me please!