The ornamental design for a “spiky journal cover,” as shown and described.
FIG. 1 is a perspective view of a spiky journal cover, showing my new design, illustrating the spiky journal cover in a closed position around a closed journal;
FIG. 2 is a perspective view of the spiky journal cover of FIG. 1, illustrating the spiky journal cover in an open, planar position;
FIG. 3 is a left side elevational view thereof
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a rear elevational view thereof;
FIG. 7 is a top plan view thereof; and,
FIG. 8 is a bottom plan view thereof.
The broken line showing of a journal is for illustrative purposes only and forms no part of the claimed design.