Think thing looks like an ugly duckling but it sounds as sweet as some clips I have heard of commercial whistles.
Looks good from here.
The A hole is hard to see.
Huh huh huh Bevis! He said A-hole! Huh huh huh huh!
Yeah, sometimes my holes turn out on the smallish side. I realize this. To me even spacing between the holes is more important than the loss of volume that is realized from having smaller holes. I keep jockeying around with my hole sizes till they are all spaced relatively evenly apart. In this case they are all approximately 1.1" apart.
This post rules.
…and you drilled it…
You may find that the 3rd hole for each hand can be closer than the 1st two.
This will allow for a larger hole and having the ring finger not have to reach as far.
The ring finger being the weakest and hardest to move separately.
In lower flutes/whistles offsetting the 3rd hole is helpful also.
Yeah thanks. I have a lot to learn. I’m not really trying to be a master whistle builder. I just consider myself a hobbyist. Still, I want to do the best job that I possibly can. I will try putting the third hole for each hand up a little closer thereby making it larger next time. Thanks for the suggestion.
Don’t we all!
It helps keep life interesting.
I like the way the writing on the pipe lines up with the top centerline of the whistle. I didn’t plan it that way but it is a nice effect! Hah hah hah!!
how 'bout a clip or two!?
I’m bad enough at playing a high D whistle. hah hah hah! I fumble with the fingerings on my low D ones. Give me some time on it to get used to it and I’ll put up a few bars from an easy song. You wouldn’t just want to hear me play some scales would you? 
I think scales would be more helpful to get a full picture of a whistle’s
sound, actually. You get to hear every note… Though, you don’t get
a real feeling of the responsiveness. Maybe a D scale and a tune
would be enough to get a feeling for the sound.
That looks a lot like my Bigamon Practice Low D.
(Except Daniel uses grey pipe…)
Is your last hole offset a little, or is that a trick of the light?
It might be offset but if it is it wasn’t intentional on my part.
Regardless of unintensional offsets, narrow labia, or ‘A’ holes, bodging whistles is cool. Keep it up!
I keep trying to foist off some odd tapered tubes on an unsuspecting whistlebodger; anyone interested?
The writing makes a nice guideline for getting the holes in a straight line too!
Is this whistle pretty quiet? That window looks pretty small.
If you’re into experimenting, when you get a whistle you really like (head, fingerholes, etc) you may want to consider cutting it in half… 
. Cut it somewhere between the top fingerhole and the windway and then put the whistle back together with a pipe connector. Now you have a good setup for experimenting. You can use that good head to experiment with different bodies for fingerhole spacing, size, etc. You can also use that good body to experiment with head variables: make wider and narrower windways, different blade angles, etc.