Firstly. This is a great piece. I can tell it took you nearly 14 hours. The fire effect is nicely done and your female forms look good, I also stuggle with the female form so I know what its like.

If I can suggest areas which could be done differently or improved. I think I would have liked to see some random chunks of ice around the Ice mage to balance out the flames.
Theres something about the breasts on the Ice mage that just seems a bit flat. I think if there's a softer gradient on the shadow and highlights. Compare it with those of the fire mage.

Anyway, hope that helps. Really like this piece.

A great piece of work, I watched the background tutorial video you made of this and found it to be very helpful.

While it is very nice to look at, as someone who doesnt play Dota, im not quite sure whats happening in the scene between the characters. Thats really my only criticism.

PS dont feel bad about the 4 star rating, i never give 5 stars unless a picture is god-like. which rarely happens