It may be too late for a critique now (since Mother's Day is tomorrow) but I would put the line that reads "Mother's Day Special" as your top line (to grab people's attention) and then below that I would put your "Have Questions" line. Also, I would make your font size on both of these lines bigger. If people are reading this on their phone screens it will need to be bolder. Also, I would say "Take 5% Off all new jobs in the month of May..."
Just my 2 cents...
This comment is also late. You seem to assume that everyone getting this knows what the company does. I had no clue and it took me a while to figure it out. Also, I wouldn't use such a dark image at the top of the email as it was really hard to see it.