It looks great! They should be happy in there. Try to skim off the oil with a paper towel and do a partial water change to get the rest of the oily substance out.

I honestly think he's ok if he's eating, pooping and swimming/hopping around normally.

Is that discoloration on his nose still there?

It's ok. I don't mind answering questions. I was nervous when I got my first frogs too.