Youth sitting on a sofa and youth workers controlling the ambience.
青年和青年工人
hostage、petition、sitting、sofa、terror、youth
人質、請願、坐在、沙發、恐怖、青年
資料來源：openclipart ( https://openclipart.org/ )

It's a pattern of circles.
風車-003
circle pattern、pattern、pin-wheel、pinwheel、pin wheel
圓圈圖案、圖案、風車、風車、針輪
資料來源：openclipart ( https://openclipart.org/ )

This image was adapted from a picture posted to publicdomainq.net. All of the images on these sites are in the public domain i.e. CC0. This site is only in Japanese but can be easily navigated with Google Translate.
跑步的女人（＃1）
Comic characters、exercise、female、girl、jog、jogging、lady、people - cartoon - cute、ponytail、run、running、woman
漫畫人物、行使、女、女孩、那、跑步、淑女、人 - 卡通 - 可愛、馬尾巴、跑、賽跑、女人
資料來源：openclipart ( https://openclipart.org/ )

From Road To OZ by Frank L. Baum, 1909
大書
blank、book、For Use、man、reading、walking
空白、書、用來、人、讀、步行
資料來源：openclipart ( https://openclipart.org/ )

Redhead Mermaid With Freckles.
紅頭髮美人魚與雀斑
Cartoon、Comic、Female、Fictional、Fish、Freckles、Girl、Half、Hybrid、Marine、Mermaid、Mythical、Mythological、Non-Human Beings、Ocean、Redhead、remix+253291、Sea、Swim、Water、Woman
動畫片、滑稽、女、虛構、魚、雀斑、女孩、半、混合動力、海洋、美人魚、神話、神話、非人類、海洋、紅發、混音+ 253291、海、游泳、水、女人
資料來源：openclipart ( https://openclipart.org/ )

Clipped from a drawing on Pixabay and vectorized in Inkscape.
冰淇淋3
cream、dessert、food、ice、icecream、lollipop、lolly、snack、sweet
奶油、甜點、餐飲、冰、冰淇淋、棒糖、棒棒糖、小吃、甜
資料來源：openclipart ( https://openclipart.org/ )

Clipart utilisé pour illustrer l'expression "entre guillemets" trop souvent utilisée pour attenuer le sens de mots employés.Clipart used to illustrate the expression "entre guillemets" ("In quotation marks")
男子用引號
entre guillemets、Expressions françaises、in quotation marks、remix 23646
用引號、法語表達、用引號、混音23646
資料來源：openclipart ( https://openclipart.org/ )

Curious crooked House, of irregular shapes.Curiosa casa torcida, con formas irregulares.
彎曲的房子2
Batiments、casa、crooked、Crooked World、grey、gris、house、KIDS、red、remix 240598、roja、torcida、Verde franela
建築行業、房子、歪、彎曲的世界、灰色、灰色、屋、KIDS、紅色、混音240598、天、燈芯、法蘭絨綠
資料來源：openclipart ( https://openclipart.org/ )

Made by SpriteAttack following this tutorial : www.2dgameartguru.com/2014/05/creating-diamonds-in-quick-and-easy-way.htmlSource: opengameart.org/content/diamonds
紫晶
amethyst、diamond、purple、treasure
紫晶、鑽石、紫色、寶藏
資料來源：openclipart ( https://openclipart.org/ )

Another try, pattern filled.
鹿彩色玻璃
deer、illinois、peremarquette、remix 193565、request 193565、requestfilled、stainedglass、vectorized
鹿、伊利諾伊、peremarquette、混音193565、要求193565、requestfilled、花窗玻璃、矢量
資料來源：openclipart ( https://openclipart.org/ )