Harvey products are very good. They are not the "top of the line" but are a very good value for the money.

Pictures are needed.

I think a coral in a glossy finish would look nice. I like storm doors for the extra protection the give, even with a porch. I would get the same color mixed for metal paint. The blue posts and railing is distracting. White would be so much better. I would paint the porch deck a classic light gray and the porch ceiling haint blue - a blue like the railing is now. Think of doing the upper portion in a hunter green, the siding and the all the trim in white. Here is a house all in hunter green. Here is a house that shows how stunning hunter green looks over white.

I am going to disagree with the door color. It is true that your current storm door blocks your front door color and makes that entry appear very much like a utility door rather than a front door entry. I would do one of two things: either remove the storm door entirely so you can see a newly painted front door or replace the current storm door with a storm door that allows you to see the entire front door. There are all kinds of accent colors that would work for the front door, but I would stay away from that dusty teal color. Go for a warm accent color. Try red. Or even a navy/dark blue. I agree entirely with the landscaping suggestions. Right now you are blocking the front and not in a good way. Give your landscaping some life. If you go with the red, see if you can have a couple of potted flowers with red in front of the line of bushes to the right of the front door to liven up the entry. If you can't get red for some reason, try a flower/plant that has some color.