This glyph is not exactly the same as Eb1-37. Compare:

Eb1-37 Eb2-2

The arms are longer in Eb1-37, which causes sharper bends in the elbows.

In Small Santiago Tablet (where we have earlier looked at what I believe to bes a calendar for the year) there is a sequence of glyphs containing two similar characters:

Ga1-11 Ga1-12 Ga1-13 Ga1-14 Ga1-15

Here there is only one 'ossified' hand, the right hand of Ga1-12. The rest have the usual three fingers + thumb. Thumbs are pointing towards the right (as seen from us). The right hand of Ga1-14 is different (thumb more vertical) from the left hands of Ga1-12 and Ga1-14. We can see toes too.

I believe the subject of these two sequences of glyphs (in Keiti and Small Santiago) are the same or similar. Compare:

Eb2-1 Eb2-2 Eb2-3 Eb1-37 Eb2-4
Ga1-11 Ga1-12 Ga1-13 Ga1-14 Ga1-15

In Ga1-11 we find a probable explanation of why in Eb2-1 there are only two 'balls'; they are to be read as 'eye-balls'. Furthermore, The person in Ga1-11 presumably is Makemake. The staring eyes remind me of how Venus is depicted by the Maya Indians:

The head of One and Seven Hunaphu (= Venus) did spit in the right hand of Blood Moon. As right and left hands are as different as man and woman, they should be written differently too.