Mail call?
Okay seems you like to do these Easter posts and they are very sweet and simple, but that can really work out well with your art. I like the line detail and how smooth it is, very close to vector art and as well has that ink art style. I think the use of the yellow inside of the black was a nice touch and really helped you give it a bit of depth. Why didn't you add more of a background here? I think that would have made it more festive, maybe add some Easter stuff since it is your normal Easter post. How about the eggs like last time? I think it needs more. I do like the background like texture details around the letter, giving it a bit of personality like the letter is important to accentuate the meaning of the mail. The same can be said of the details around the letter and the yellows and black lines they have to match the mail itself. It ties in well with that background detail you have going on. Some of your awesome original text here would have worked too, maybe something alone the lines of "YOUVE GOT MAIL?" or something silly like that. It would be cool to add that in there or just to spice it up here and there. Overall a good one, nice smooth solid piece of art here and good eye of using yellow to add that depth. You are really good with lines and ink work so please keep this stuff up, but more backgrounds!
~~THINGS TO IMPROVE ON~~
Add a background and some text to this one and it'll be more complete
~X~