T3H WADZORZ
Hmm... I see a only a few things with this wad...
1: For some reason you turned on highres even though the sprites really aren't that big.
2: The last two Sprites seem to be uppercase when they should be lowercase.
Easy way to fix #2 is to:
1: Get the latest beta of XWE. (If you don't have it already)
2:Open up your wad in XWE, go up to "View" at the top of the window and click on "Options...", click the "Entry List" tab and then click the checkbox next to "Don't auto capitalize lump names" then just click "OK".
3: Change the bottom two sprites of your wads A and B to a and b (lowercase).
As for the first one just go into S-Skin and turn the "1" next to highres into "0" (without quotes of course).
If that doesn't work then change the lump "S-SKIN1" to just "S_SKIN"
P.S. I would advise against releasing this to the general public if that's your plan... People here aren't too fond of 2D characters...