The first pentagram here is the Lesser Invoking Pentagram, to be imagined in white light, or, as seen by clairvoyants, bluish white light. The second is the Invoking Earth Pentagram, to be imagined in black, with a symbol of Taurus drawn in the center. Without the colour differences and the addition of this symbol they appear to be the same. They are not.
Let's look at another example to bring this point home:
The first pentagram here is the Banishing Air Pentagram, to be imagined in yellow with the symbol of Aquarius drawn in the centre. The second is the Invoking Water Pentagram, to be imagined in blue with the symbol of Scorpio in the centre. At first glance, when the zodiac symbols and the colour differences are not employed, they appear to be the same pentagram, but they are not. Likewise for Invoking Air and Banishing Water.
Thus it is important to not make assumptions on the basis of what something is at face value; just because the Lesser Pentagram is drawn in the same manner as the Earth Pentagram does not make it the same.