Sketch Card Artist/Character Help

[Brobocop]

So I was going through a drawer and found about 25 sketch cards that I forgot I owned. I was able to identify the artist/character on most of them using eBay but there were a few that I was hoping everyone could help me out with. The first photo has three cards that I can't identify the artist signatures on. The second photo has three cards that I'm not sure on the character. And the third is a puzzle card that I can't eve find a signature on. Any help would be greatly appreciated!

[eddiekyf]

quite sure Rain Lagunsad is the artist of the puzzle

[Brobocop]

Anyone else have any ideas? This puzzle sketch has had me clueless since I got it. I've never seen a sketch card that was unsigned.

[eddiekyf]

Iron Man 3 Upper Deck 2013 Sketch 6 Card Panel by Rainier Lagunsad Super RARE | eBay (http://www.ebay.com/itm/IRON-MAN-3-Upper-Deck-2013-SKETCH-6-CARD-PANEL-by-RAINIER-LAGUNSAD-Super-Rare-/161048370473?pt=LH_DefaultDomain_0&hash=item257f3b1d29&nma=true&si=nV9pyuwm5EI6AR2QBpJ%252B77hAD7E%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557)
Same style of Lagunsad sketch on ebay
Anyone else have any ideas? This puzzle sketch has had me clueless since I got it. I've never seen a sketch card that was unsigned.

[Brobocop]

Iron Man 3 Upper Deck 2013 Sketch 6 Card Panel by Rainier Lagunsad Super RARE | eBay (http://www.ebay.com/itm/IRON-MAN-3-Upper-Deck-2013-SKETCH-6-CARD-PANEL-by-RAINIER-LAGUNSAD-Super-Rare-/161048370473?pt=LH_DefaultDomain_0&hash=item257f3b1d29&nma=true&si=nV9pyuwm5EI6AR2QBpJ%252B77hAD7E%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557)
Same style of Lagunsad sketch on ebay

Looks pretty similar to me too, thank you for your help!

[ccjorda]

I don't think it is Rainier Lagunsad. I own that 6 piece and a few of the four pieces. Rainier always signs. Plus, there are difference in the techniques. Just my opinion. If you ever figure it out. I would be interested if you are selling or trading.

[Nuurgle]

Can't help on much, but the 2nd pic, 3rd sketch is Yondu (comic version).

[literarywill]

I'm not having any luck finding out who it is.