Lodge Dutch Oven seasoning fail (My first cast iron experience) I bought this.

It was a little rusty. I cleaned the rust with salt. I wanted to remove preseasoning but I don't have requirements for that process. 


Washed the dutch oven with soap and cold water.
Heated it to 100 C.
Applied flaxseed oil.
Wiped again with paper towel for excess oil.
Putted it to 250 C oven for 1 hour.
Waited 2 hours for cooling.


Problems:
1. Paper towel is not good for that because there are a lot of residue and dust on dutch oven when I use it.
  2. It seems 1st seasoning failed, because there is no change. Where I am wrong?

Rust:


Before seasoning:


After seasoning:
I always let some oil remain on the pan and as it burns off it leaves an almost non stick surface. Perhaps the paper towel is removing too much of the oil.