I think the Veg1 makes a lot of sense. As to the selenium, the soil in agriculture is so depleted of selenium and it is so vital for optimal health that if one can get it from another source, I think that's an excellent idea.
I have doubts though whether the quantity of their Vit D is sufficient. It seems low to me. Two doctors I spoke to also think this.
Personally, and I doubt if I'm alone in this, I do not absorb Vit D2 which is vegan. I now have to take supplements of Vit D3 which is not vegan. (Ah, if only the vegan world was perfect or if I lived in a climate where there was sun all year round!). I discovered this quite by accident. I had been taking my Veg1 supplements (which contain vegan VitD, i.e. Vit D2) every single day since I became vegan about 9 years ago and thought I was therefore covered for Vit D. Much to my surprise, a blood test revealed that I was almost completely deficient in Vit D, which meant that I was also deficient in calcium (as calcium needs Vit D to fix itself). Other levels of some trace elements or vitamins were also low, ALL DUE TO A LACK OF VIT D!!
But Vit D3 (the non-vegan one unfortunately) did the trick and my levels went back quickly.
So I did some research and indeed Vit D2 is not absorbed by some people. So I would advise everyone to check their Vit D levels next time they have a blood check.
Just to give some extra info here. I had had for months all sorts of weird health problems which no-one could figure out (including a year-long chronic shoulder pain which NOTHING helped go away). All the health problems disappeared like a flash once my VitD levels were back to normal, and after a few weeks, my shoulder was completely healed. (Again, after research, the shoulder pain, although not originally caused by a lack of Vit D, could not heal because of the deficiency).