Thank you for your designs. I like the last two concepts (#57 and #58).
I'm wondering, can you reduce the "squareness" of the letters -perhaps a bit more smooth on the ends? Also, I like what you did with the accent mark or the letter "I" - I like the flame - rather organic. Is it possible to do some thing along these lines, that denotes sending... As you know, that is what envía means. I like the organic and a bit more free flowing designs.
I hope it helps. Look forward to seeing your progress. I saw your portfolio and you have some great work!