Secondly, the texture is simply recolored.
To be fair, The original model texture wrap isn't aged really well but there is probably a better execution. You can actually see red spot checkpoint wrap in the knight's helmet too. (Technically, ike_ike texturing isn't great but it's alright for a custom model)
The shield being paint over flat yellow that didn't fit the color scheme (purple and yellow is alright but not when red around). The shield emblem is not bad tho
I don't think this is your fault, the model is quite hard to get it right and personally, you can start with original model to do the texturing.
Edited: My apologies for not reading the description and the cape doesn't seem to be used in the original model. However this skin is at least functional but not enough freehand.