I choose to do the Hardest Sprite... I am going to try and explain ho I done the Sprite so you can attempt the others.
Open RPG Maker XP, and go through the Sprites available, and see what sprites Match what your trying to do, the best... I Choose the Bard and Fighter01...
I opened all the reference material in Photoshop.
I then played with the colours to try and Match the actual sprite set best I could, failing that I lightened them... And started moving over parts from the Original over my template (In this case Fighter01)
Body Part By Body part from the original to the template, each I re-scaled using Free Transformation, found under Image from the top tool bar
Until I had finished a Complete Row... Starting on the Left or Right set helps me, as once you have done one row, it's nice and easy to copy and past each frame for the Facing the other way... Meaning your Half done !!! (Phyicalogical thing)
I then move on to my Favourite row, the facing down... and simply do the same as I did for the other rows...
(Hint) - [Leaving the layers UN-Merged helps you can hold down Ctrl and click on various body parts all ready transformed and simply dupliacte the layer, and simply drag it to a new location]
After you have done the facing down and side views, the walking up, is EASY... Same as the above really, copy paste, transform and sharpen if needed.
Once done save as PNG... and add weapons if you want !!!
Dollmage - This should be so easy for a spriter like you... Especially if you made those animations from scratch !!!
Good luck and I hope you like what I have done, it took me 2 Hours.