So I know you asked me for some constructive criticism but honestly I don't have much to say. You've been doing really great work with these characters. The only thing I can see that I would do differently would be the shading. It looks a little heavy on some of your characters. But I tend to go quite light on shading these days so that may just be my personal preference.
If you're looking for some tips on shading, I've been giving some advice on the subject in my thread to someone else recently if you want to give it a look. Or I'm sure there are a number of different people around here you could ask as everyone tends to do shading differently.
But other than that, you're honestly doing great.
Hi Anarch how are you dude? Would you mind heading over to my gallery and giving me some constructive criticism please? I want to take my creations to that next level if you wouldn’t mind helping an old friend out. By the way, does Jesterthegreat ever come on here? His work used to be incredible and his imagination was superb!
Sorry for not replying. I actually completely missed this post until just now. I've been checking in on your thread every now and then. You have some great characters there.
I actually haven't seen Jes in years. No idea where he is these days.
Star Shine works really well, I'm getting Monica Rambeau vibes from her.
Loving your recent work mate! Love the brightness of the colours they really pop off the page.
Here is a newer hero of mine. This is Cody Reynolds. His name is Helios. I haven't figured out too much of his story yet, but he has quickly become a favorite of mine. The story so far is that Cody and a couple of others were all involved in some sort of experiment to try and create super powers. This was also a project to make a team of superheroes. All of them were given code names based off of a Greek/Roman God. Cody was given the powers of pyromancy and flight.

Here is another one of my creations. This is the Emerald Warrior. Not my character but a friends. Yes they allowed me to post it here. As always any tips and or suggestions are welcome.
Jerry Greenfield was a collector of anything medieval. He soon came across an emerald green helmet. He then decided it would be a good idea to put it on. Soon after a magical glow came from the helmet as it expanded around him. As the glow faded it shown that he was now wearing a suit of armor. He later discovered that the suit granted him amazing strength along with other powers. He soon became the superhero Emerald Warrior.

Hey Nighthawk, I've viewed your creations, and I just have to say, great job! They are really cool. I am not really sure how you highlight, shade, and pose my characters to well. But if you could give me some insight on how to do so that would be great.