This is not the whole picture
By metaphor: the situation is more complex and there are additional aspects. Additional information is missing.
(Modern Hebrew)
Translation
Expression (Hebrew)
זוֹ לֹא כָּל הַתְּמוּנָה
Definition (Hebrew)
בְּהַשְׁאָלָה: הַמַּצָּב מֻורְכָּב יוֹתֵר וְיֶשְׁנָם הֶבֵּטִים נוֹסָפִים. חָסֵר מֵידָע נוֹסָף.
(הָעִבְרִית הַחֲדָשָׁה)