Welcome to the forum and that's a good start on whistles. Enjoy your playing.

I like that Clarke Celtic...that will be my next whistle unless I find a screaming deal on a different one!

And, to mark my 100th post, here are my two whistles:



The one on top is a Walton's Irish D, and the green one is a Feadóg Original. Both are soprano D whistles. The Feadóg has been my go-to whistle as of late, but the Walton's still gets semi-regular playing time, too.

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Whistle No.1: Walton's Irish, soprano D
Whistle No. 2: green Feadóg Original, soprano D

I recently beefed up my collection of slightly lower whistles, by getting three additional companions for my Susato Kildare C polymer whistle, which I am found of. I got Kildare Bb, A, and G. The A and G each have one key on the lowest hole, and I'm loving how much easier it's making it for me to play them with my small hands. The only down side I find is that it seems impossible (at least for now) to make a sharped note with half-holing the bottom hole, because of the key pad. It 'can' be done, but whether consistently or not remains to be seen...I'm merely a beginner player of one year or so.
But I'm real happy with the warm throaty tone of these new whistles (I don't play trad Irish music btw), and I love having a C-to-G set of four of them.
Here's a 'family portrait'...

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Having FUN playin' my whistles!
http://pennywhistleclub.com/
...a new social network just for whistlers

I have one, too and it's actually quite good -- especially for the price. Wouter Kellerman used it for some songs that can be found on Youtube.
https://www.youtube.com/watch?v=o1WPnnvs00I
https://www.youtube.com/watch?v=sz0bv9xz3ic
https://www.youtube.com/watch?v=0M6Rqb7QVHs

Well I got myself a second whistle, a Generation in C (nickel)
Basically the only music shop in the town is closing. I went in for clarinet reeds but they had all gone. I spotted a small display of whistles instead, and so...
It's quite a bit bigger than my D Feadóg, has a mellower sound and is much easier to blow, and half hole.
Here they are side by side.



Here's how it sounds:

https://www.instagram.com/p/Bi1fXMPHaP_/

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You don't stop playing when you get old, you get old when you stop playing!
My musical endeavours on my blog https://mymusictree.blogspot.co.uk/

Sounds nice and has a mellow tone.

_________________
Having FUN playin' my whistles!
http://pennywhistleclub.com/
...a new social network just for whistlers

It's lovely, so different to the Feadóg. Whether thats due to the different size, or material I'm not sure. But the difference is surprising. Not as loud and much easier to play chromatically.

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You don't stop playing when you get old, you get old when you stop playing!
My musical endeavours on my blog https://mymusictree.blogspot.co.uk/