Perhaps divide your portfolio along studio position lines. Robot sketch 2 is just a blob of rusty metal, not a good thing to keep. Ask yourself if someone experimenting in zbrush couldn't do the same thing, especially so if it wasn't textured and didn't have the mist. Monster Bust is also a generic blob with generic sharp…
My gut instinct is that now your portfolio is kind of a clusterfuck (pardon the french). Rather than showing that you can do what's needed of you, by adding random stuff when you get someone interested in it, it looks like you can't make up your mind and we don't know what to expect from you. Whether or not it's actually…