COME INTO DEMENTIA FIVE! Good work, and like the boldness of the character. I can see that this image was mostly scanned in, and additional painting was done digitally. When you are first bringing in scanned artwork you should make sure that you contract the selection by 1-2 pixels or otherwise you have an ugly white outline around your artwork.

Also I can see that you used a contraction gradient with transparency clipping mask to give the axe its shine. This can work but must be done without existing highlights already drawn in, as a result the shine effect doesn't match the existing highlight on the scanned artwork. To do a more effective highlight you should color it with one color, create an overlay blending layer clipping mask for basic shine, and then have a harder highlight shine layer set to a hard light layer blending mode, then use a minor blur over top of the hard light to give it a glow effect.

Sorry if this got bit technical but i'm happy to see you experimenting with the program, good luck moving forwards and keep practicing.