A few comments:

If you do not feel confident playing a framework game, why play here? Just making an enclosure is fine, maybe even better.

Excellent, as we now know.

Hane.

According to Elf, the old joseki is good for White when there are two side star stones. Black ends up overconcentrated, I suppose.

OC, after that, you don't invade a side. Just play an enclosure.

In the old days I would have recommended enclosing the top left corner. Then if Black pincers the bottom left, play a counterpincer, probably at C-07, and after Black presses against the White corner stone, make a base at C-10 on the left side. That way White gets a double wing.

I think that it is late enough in the opening to play that way today, as well.
Otherwise, how about a kick in the bottom left corner, followed by a one space extension on the 3d line? The problem with that is that Black gets to approach the top left corner.

Why not attach underneath?

I don't think that
a would have been good. Your way looks right.

My feeling is the hane at E-15. It's not like you are walling off territory or anything. But maybe E-15 is too slow, as well.

Certainly playable, if not best.

,

I am not thrilled with strengthening Black. Besides, Black might ignore the first peep and sacrifice one stone.

I would lay stake to the huge box on the left side. Manna from heaven.

Invites

. You can reduce the right side without this play. Doing so might count as a leaning attack.

Before playing the slide on the bottom side, reducing the left side seems like a good idea. I would start with the shoulder blow, however.

Huh?
White 100: Thanks to

you can stand with sente.