hi!

ok.. I gotta be honest..
To me, it doesn't seem like you actually do that much with your banners.
Like, all I see are some pictures mashed together with some text on them..
and some of them are way to big..
If you really want to create banners, use brushing, filters, colorizing and
texturing techniques..

so.. yeah, sorry for the harshness.. but the only way to learn is to once in a while get some critique..